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{{Short description|Border dispute between China and India}}
{{EngvarB|date=September 2013}}
{{Use dmy dates|date=September 2013}} {{Too few opinions|discuss=Talk:Sino-Indian War#Sources|date=September 2017}}
{{about|the Sino-Indian border dispute|China–India relations|China–India relations}}
]
{{Use dmy dates|date=October 2020}}
] over two large and various smaller separated pieces of territory are contested between China and ]. The westernmost, ], is claimed by India as part of the state of ] and region of ] but is controlled and administered as part of the Chinese autonomous region of ]. It is a virtually uninhabited high altitude wasteland crossed by the ]. The other large disputed territory, the easternmost, lies south of the ]. It was formerly referred to as the ], and is now called ]. The McMahon Line was part of the 1914 ] between ] and ], an agreement rejected by China.<ref name="Calvin"/>
{{Use Indian English|date=July 2016}}
{{Infobox military conflict
| conflict = Sino–Indian border dispute
| partof = the ]
| image = China India CIA map border disputes.jpg
| caption = Line of Actual Control between China and India (map by the CIA)
| date = 20 October 1962 – present
<br />({{Age in years, months and days|month1=10|day1=20|year1=1962}})
| place = ]
| status = ongoing
}}

The '''Sino–Indian border dispute''' is an ongoing ] over the sovereignty of two relatively large, and several smaller, separated pieces of territory between ] and ]. The territorial disputes between the two countries result from the ] in Asia and the lack of clear historical boundary demarcations.

The first of the territories, ], is administered by China and claimed by India; it is mostly uninhabited high-altitude wasteland but with some significant pasture lands at the margins.<ref>Aakash Hassan, Hannah Ellis-Petersen, {{Webarchive|url=https://web.archive.org/web/20221217102639/https://www.theguardian.com/world/2020/jul/03/our-pastures-have-been-taken-india-china-himalayan-land-grab|date=17 December 2022}}, The Guardian, 3 July 2020.</ref> It lies at the intersection of ], ] and ], and is crossed by China's ]; the other disputed territory is south of the ], in the area formerly known as the ] and now a ] called ]. It is administered by India and claimed by China. The McMahon Line was signed between ] and ] to form part of the 1914 ], but the latter was never ratified by China.{{sfnp|Hoffmann|1990|p=19}} China disowns the McMahon Line agreement, stating that Tibet was not independent when it signed the Simla Convention.

The 1962 ] was fought in both disputed areas. Chinese troops attacked Indian border posts in Ladakh in the west and crossed the McMahon line in the east. There was a brief border clash in 1967 in the region of ], despite there being an agreed border in that region. In 1987 and in 2013, potential conflicts over the Lines of Actual Control were successfully de-escalated. A ] involving a Bhutanese-controlled area on the ] was successfully de-escalated in 2017 following injuries to both Indian and Chinese troops.<ref>{{Cite news|last=Ramachandran|first=Sudha|date=15 July 2020|title=Beijing Asserts a More Aggressive Posture in Its Border Dispute with India|url=https://jamestown.org/program/beijing-asserts-a-more-aggressive-posture-in-its-border-dispute-with-india/|access-date=17 July 2020|website=]|archive-date=17 July 2020|archive-url=https://web.archive.org/web/20200717001654/https://jamestown.org/program/beijing-asserts-a-more-aggressive-posture-in-its-border-dispute-with-india/|url-status=live}}</ref> Multiple ] broke out in 2020, escalating to dozens of deaths in June 2020.<ref>{{cite news |last1=Goldman |first1=Russell |title=India-China Border Dispute: A Conflict Explained |url=https://www.nytimes.com/2020/06/17/world/asia/india-china-border-clashes.html |access-date=27 June 2020 |work=The New York Times |date=17 June 2020 |archive-date=26 June 2020 |archive-url=https://web.archive.org/web/20200626233609/https://www.nytimes.com/2020/06/17/world/asia/india-china-border-clashes.html |url-status=live }}</ref>

Agreements signed pending the ultimate resolution of the boundary question were concluded in 1993 and 1996. This included "confidence-building measures" and the ]. To address the boundary question formalised groups were created such as the Joint Working Group (JWG) on the boundary question. It was to be assisted by the Diplomatic and Military Expert Group. In 2003 the ] (SRs) mechanism was constituted.<ref name=":0" /><ref name=":1">{{Cite web|title=Agreement on the Political Parameters and Guiding Principles for the Settlement of the India-China (April 11, 2005)|website=mea.gov.in|access-date=2021-02-20|url=https://mea.gov.in/bilateral-documents.htm?dtl/6534/Agreement+between+the+Government+of+the+Republic+of+India+and+the+Government+of+the+Peoples+Republic+of+China+on+the+Political+Parameters+and+Guiding+Principles+for+the+Settlement+of+the+IndiaChina+Boundary+Question|archive-date=23 February 2021|archive-url=https://web.archive.org/web/20210223233309/https://mea.gov.in/bilateral-documents.htm?dtl%2F6534%2FAgreement+between+the+Government+of+the+Republic+of+India+and+the+Government+of+the+Peoples+Republic+of+China+on+the+Political+Parameters+and+Guiding+Principles+for+the+Settlement+of+the+IndiaChina+Boundary+Question|url-status=live}}</ref> In 2012 another dispute resolution mechanism, the ] (WMCC) was framed.<ref name=":5">{{Cite news|date=2012-01-17|title=India, China to set up working mechanism on border management|work=The Hindu|url=https://www.thehindu.com/news/national/India-China-to-set-up-working-mechanism-on-border-management/article13369753.ece|access-date=2021-02-22|issn=0971-751X|archive-date=5 October 2020|archive-url=https://web.archive.org/web/20201005133349/https://www.thehindu.com/news/national/India-China-to-set-up-working-mechanism-on-border-management/article13369753.ece|url-status=live}}</ref>


==Background==
The 1962 ] was fought in both of these areas. An agreement to resolve the dispute was concluded in 1996, including "confidence-building measures" and a mutually agreed ]. In 2006, the Chinese ambassador to India claimed that all of Arunachal Pradesh is Chinese territory<ref name=Rediff>"", ''Rediff India Abroad,'' 14 November 2006.</ref> amidst a military buildup.<ref>Subir Bhaumik, "", ''BBC'', 23 November 2010.</ref> At the time, both countries claimed incursions as much as a kilometre at the northern tip of ].<ref name="Sudha">Sudha Ramachandran, "", ''Asia Times Online'', 27 June 2008.</ref> In 2009, India announced it would deploy additional military forces along the border.<ref name=WSJ>"", ''Wall Street Journal'', 24 June 2009.</ref>
The territorial disputes between the two countries result from the historical consequences of colonialism in Asia and the lack of clear historical boundary demarcations.<ref name=":Wang2">{{Cite book |last=Wang |first=Frances Yaping |title=The Art of State Persuasion: China's Strategic Use of Media in Interstate Disputes |publisher=] |year=2024 |isbn=9780197757512 |doi=10.1093/oso/9780197757505.001.0001}}</ref>{{Rp|page=251}} There was one historical attempt to set a proposed boundary, the McMahon Line, by Great Britain during the ].<ref name=":Wang2" />{{Rp|page=251}} The ] rejected the proposed boundary.<ref name=":Wang2" />{{Rp|page=251}} The unresolved dispute over the boundary became contentious after India gained its independence and the People's Republic of China was established.<ref name=":Wang2" />{{Rp|page=251}} The disputed borders are complicated by the lack of administrative presence in the disputed areas, which are remote.<ref name=":Wang2" />{{Rp|page=251}}


Disagreements also result from the fact that the Line of Actual Control has never been distinctly demarcated, with China and India often disagreeing over its precise location.<ref name=":Wang2" />{{Rp|page=270}}
== 1960 meetings to resolve the boundary question ==
In 1960, based on an agreement between Nehru and Chou En-Lai, officials from India and China held discussions in order to settle the boundary dispute.<ref name="HimalayanBground">{{cite book|last1=Fisher|first1=Margaret W.|last2=Rose|first2=Leo E.|last3=Huttenback|first3=Robert A.|title=Himalayan Battleground: Sino-Indian Rivalry in Ladakh|date=1963|publisher=Praeger|url=http://www.questia.com/read/10466588/|subscription=yes|via=]}}</ref>{{rp|91}} China and India disagreed on the major watershed that defined the boundary in the western sector.<ref name="HimalayanBground" />{{rp|96}} The Chinese statements with respect to their border claims often misrepresented the cited sources.<ref name="HimalayanBground" />{{rp|99}}


==Aksai Chin== ===Aksai Chin===
{{main|Aksai Chin}} {{main|Aksai Chin}}
]


] and ]. In the southern ], only two claim lines are shown (map by the CIA).]]
From the area's lowest point (on the ] at about {{convert|14000|ft|m}} to the glaciated peaks up to {{convert|22500|ft|m}} above sea level, this is a desolate, largely uninhabited area. It covers an area of about {{convert|37244|km2|sqmi}}. The desolation of Aksai Chin meant that it had no significant human importance other than ancient trade routes crossing it, providing brief passage during summer for caravans of yaks from Xinjiang and Tibet.<ref name="Neville_Maxwell">Maxwell, Neville, , New York, Pantheon, 1970.</ref>
From the area's lowest point on the ] at about {{convert|14000|ft|m}} to the glaciated peaks up to {{convert|22500|ft|m}} above sea level, Aksai Chin is a desolate, largely uninhabited area. It covers an area of about {{convert|37244|km2|sqmi}}. The desolation of this area meant that it had no significant human importance other than ancient trade routes crossing it, providing brief passage during summer for caravans of yaks from Xinjiang and Tibet.<ref name="Neville_Maxwell">{{harvp|Maxwell|1970}}</ref>


One of the earliest treaties regarding the boundaries in the western sector was issued in 1842. The ] of the ] in India had annexed ] into the state of ] in 1834. In 1841, they invaded Tibet with an army. Chinese forces defeated the Sikh army and in turn entered Ladakh and besieged ]. After being checked by the Sikh forces, the Chinese and the Sikhs signed a treaty in September 1842, which stipulated no transgressions or interference in the other country's frontiers.<ref name="Rubin">The Sino-Indian Border Disputes, by Alfred P. Rubin, The International and Comparative Law Quarterly, Vol. 9, No. 1. (Jan. 1960), pp. 96–125.</ref> The ] resulted in transfer of sovereignty over Ladakh to the British, and British commissioners attempted to meet with Chinese officials to discuss the border they now shared. However, both sides were apparently sufficiently satisfied that a traditional border was recognised and defined by natural elements, and the border was not demarcated.<ref name="Rubin"/> The boundaries at the two extremities, ] and ], were reasonably well-defined, but the Aksai Chin area in between lay largely undefined.<ref name="Neville_Maxwell"/><ref name="Guruswamy2006">{{cite book |title= Emerging Trends in India-China Relations |last= Guruswamy |first= Mohan |date=January 2006 |publisher= Hope India Publications |location= India |isbn= 978-81-7871-101-0 |page= 222 |url= http://books.google.com/books?id=trAb0KxP_ocC&pg=PA222 |accessdate=12 September 2009}}</ref> One of the earliest treaties regarding the boundaries in the western sector was issued in 1842 following the ]. The ] of the ] had annexed ] into the state of ] in 1834. In 1841, they invaded Tibet with an army. Tibetan forces defeated the Sikh army and in turn entered Ladakh and besieged ]. After being checked by the Sikh forces, the Tibetan and the Sikhs signed the ] in September 1842, which stipulated no transgressions or interference in the other country's frontiers.<ref name="Rubin">The Sino-Indian Border Disputes, by Alfred P. Rubin, The International and Comparative Law Quarterly, Vol. 9, No. 1. (Jan. 1960), pp. 96–125. {{JSTOR|756256}}.</ref> The ] resulted in transfer of sovereignty over Ladakh to the British, and British commissioners attempted to meet with Chinese officials to discuss the border they now shared. However, both sides were sufficiently satisfied that a traditional border was recognised and defined by natural elements, and the border was not demarcated.<ref name="Rubin"/> The boundaries at the two extremities, ] and ], were reasonably well-defined, but the Aksai Chin area in between lay largely undefined.<ref name="Neville_Maxwell"/><ref name="Guruswamy2006">{{cite book |title=Emerging Trends in India-China Relations |last=Guruswamy |first=Mohan |year=2006 |publisher=Hope India Publications |location=India |isbn=978-81-7871-101-0 |page=222 |url=https://books.google.com/books?id=trAb0KxP_ocC&pg=PA222 |access-date=27 October 2015 |archive-url=https://web.archive.org/web/20160625084204/https://books.google.com/books?id=trAb0KxP_ocC&pg=PA222 |archive-date=25 June 2016 |url-status=live }}</ref>{{unreliable source?|date=October 2019|reason=See ]}}


=== The Johnson Line === ==== The Johnson Line ====
] (near top right corner). The previous border claimed by the ] is shown in the two-toned purple and pink band with ] and the Kilik, Kilian and Sanju Passes clearly north of the border.]] ] (near top right corner). The previous border claimed by the ] is shown in the two-toned purple and pink band with ] and the Kilik, Kilian and Sanju Passes clearly north of the border.]]
] ]
{{main|Ardagh–Johnson Line}}
], a civil servant with the Survey of India proposed the "Johnson Line" in 1865, which put Aksai Chin in Jammu and Kashmir. This was the time of the ], when China did not control ], so this line was never presented to the Chinese. Johnson presented this line to the Maharaja of Jammu and Kashmir, who then claimed the 18,000 square kilometres contained within his territory<ref name="Guruswamy">Mohan Guruswamy, Mohan, , Rediff, 23 June 2003. {{webarchive|url=https://web.archive.org/web/20160930222001/http://www.rediff.com/news/2003/jun/20spec.htm |date=30 September 2016 }}.</ref>{{unreliable source?|date=October 2019|reason=See ]}} and by some accounts{{citation needed|date=September 2017}} he claimed territory further north as far as the ] in the ]. The Maharajah of Jammu and Kashmir constructed a fort at Shahidulla (modern-day ]), and had troops stationed there for some years to protect caravans.{{sfnp|Woodman|1970|p=51}} Eventually, most sources placed Shahidulla and the upper ] firmly within the territory of Xinjiang (see accompanying map). According to ], who explored the region in the late 1880s, there was only an abandoned fort and not one inhabited house at Shahidulla when he was there – it was just a convenient staging post and a convenient headquarters for the nomadic ].<ref>Younghusband, Francis E. (1896). ''The Heart of a Continent''. John Murray, London. Facsimile reprint: (2005) Elbiron Classics, pp. 223–224.</ref>{{primary source inline|date=October 2019}} The abandoned fort had apparently been built a few years earlier by the ].<ref>Grenard, Fernand (1904). ''Tibet: The Country and its Inhabitants''. Fernand Grenard. Translated by A. Teixeira de Mattos. Originally published by Hutchison and Co., London. 1904. Reprint: Cosmo Publications. Delhi. 1974, pp. 28–30.</ref>{{primary source inline|date=October 2019}} In 1878 the Chinese had reconquered Xinjiang, and by 1890 they already had Shahidulla before the issue was decided.<ref name="Guruswamy"/>{{unreliable source?|date=October 2019|reason=See ]}} By 1892, China had erected boundary markers at ].{{citation needed|date=February 2024}}


In 1897 a British military officer, Sir John Ardagh, proposed a boundary line along the crest of the ] north of the ].{{sfnp|Woodman|1970|pp=360–}} At the time Britain was concerned at the danger of Russian expansion as China weakened, and Ardagh argued that his line was more defensible. The Ardagh line was effectively a modification of the Johnson line, and became known as the "Johnson-Ardagh Line".{{cn|date=September 2024}}
], a civil servant with the ] proposed the "Johnson Line" in 1865, which put Aksai Chin in Jammu and Kashmir.<ref name="Guruswamy">Mohan Guruswamy, Mohan, , Rediff, 23 June 2003.</ref> This was the time of the ], when China did not control ], so this line was never presented to the Chinese.<ref name="Guruswamy"/> Johnson presented this line to the Maharaja of Jammu and Kashmir, who then claimed the 18,000 square kilometres contained within his territory<ref name="Guruswamy"/> and by some accounts he claimed territory further north as far as the ] in the ]. Johnson's work was severely criticised for gross inaccuracies, with description of his boundary as "patently absurd",<ref name="Calvin">{{cite web

==== The Macartney-Macdonald Line ====
{{Main|Macartney–MacDonald Line}}
]
In 1893, Hung Ta-chen, a senior Chinese official at ], gave maps of the region to ], the British consul general at Kashgar, which coincided in broad details.<ref name=HimalayanFrontiers>{{harvp|Woodman|1970|pp=73,&nbsp;78}}</ref> In 1899, Britain proposed a revised boundary, initially suggested by Macartney and developed by the Governor General of India ]. This boundary placed the Lingzi Tang plains, which are south of the Laktsang range, in India, and Aksai Chin proper, which is north of the Laktsang range, in China. This border, along the ]s, was proposed and supported by British officials for a number of reasons. The Karakoram Mountains formed a natural boundary, which would set the British borders up to the ] ] while leaving the ] watershed in Chinese control, and Chinese control of this tract would present a further obstacle to Russian advance in ].<ref name="Noorani">{{Citation |last=Noorani |first=A.G. |date=30 August 2003|title=Fact of History |magazine=Frontline |volume=26 |issue=18 |url=http://frontlineonnet.com/fl2018/stories/20030912002104800.htm |url-status=dead |archive-url=https://web.archive.org/web/20111002095213/http://frontlineonnet.com/fl2018/stories/20030912002104800.htm |archive-date=2 October 2011}}</ref> The British presented this line, known as the Macartney-MacDonald Line, to the Chinese in 1899 in a note by Sir ]. The Qing government did not respond to the note.<ref>{{harvp|Woodman|1970|pp=102}}: "The proposed boundary seems never to have been considered in the same form again until Alastair Lamb revived it in 1964".</ref> According to some commentators, China believed that this had been the accepted boundary.<ref name=middlepath>{{cite journal
| last1 = Verma
| first1 = Virendra Sahai
| year =2006
| title =Sino-Indian Border Dispute at Aksai Chin - A Middle Path For Resolution
| volume =25
| issue =3
| pages =6–8
| issn =1651-9728
| url = http://chinaindiaborderdispute.files.wordpress.com/2010/07/virendravermapaperborderdispute.pdf
| url-status = live
| archive-url = https://web.archive.org/web/20131019060751/http://chinaindiaborderdispute.files.wordpress.com/2010/07/virendravermapaperborderdispute.pdf
| archive-date= 19 October 2013 | journal = Journal of Development Alternatives and Area Studies
}}</ref>

==== 1899 to 1947====
Both the Johnson-Ardagh and the Macartney-MacDonald lines were used on British maps of India.<ref name="Guruswamy"/>{{unreliable source?|date=October 2019|reason=See ]}} Until at least 1908, the British took the Macdonald line to be the boundary,{{sfnp|Woodman|1970|pp=79}} but in 1911, the ] resulted in the collapse of central power in China, and by the end of ], the British officially used the Johnson Line. However they took no steps to establish outposts or assert actual control on the ground. In 1927, the line was adjusted again as the government of British India abandoned the Johnson line in favour of a line along the Karakoram range further south. However, the maps were not updated and still showed the Johnson Line.{{citation needed|date=February 2024}}
]
From 1917 to 1933, the "Postal Atlas of China", published by the Government of China in Peking had shown the boundary in Aksai Chin as per the Johnson line, which runs along the ].<ref name=HimalayanFrontiers /><ref name=middlepath /> The "Peking University Atlas", published in 1925, also put the Aksai Chin in India.<ref name="HimalayanBground" />{{rp|101}} When British officials learned of Soviet officials surveying the Aksai Chin for ], warlord of ] in 1940–1941, they again advocated the Johnson Line. At this point the British had still made no attempts to establish outposts or control over the Aksai Chin, nor was the issue ever discussed with the governments of China or Tibet, and the boundary remained undemarcated at India's independence.<ref name="Calvin1">{{cite book
| last =Calvin | last =Calvin
| first =James Barnard | first =James Barnard
| date = April 1984 | date =April 1984
| url =
| url = http://www.globalsecurity.org/military/library/report/1984/CJB.htm
| title =The China-India Border War | title =The China-India Border War
| publisher = Marine Corps Command and Staff College | publisher =Marine Corps Command and Staff College
}}</ref><ref name="Orton p. 24">{{cite book | last=Orton | first=A | title=India's Borderland Disputes: China, Pakistan, Bangladesh and Nepal | publisher=Epitome Books | isbn=978-93-80297-25-5 | url=https://books.google.com/books?id=vcwkEAAAQBAJ&pg=PA24 | page=24 | access-date=25 February 2024 | archive-date=13 August 2024 | archive-url=https://web.archive.org/web/20240813235315/https://books.google.com/books?id=vcwkEAAAQBAJ&pg=PA24#v=onepage&q&f=false | url-status=live }}</ref>
| accessdate =14 October 2011
}}</ref> and he was reprimanded by the British Government and resigned from the Survey.<ref name="Calvin" /><ref name="Guruswamy"/><ref name="Noorani">{{Citation | last=Noorani | first=A.G. |publication-date=30 August – 12 September 2003 |title=Fact of History | magazine=Frontline | volume=26 | issue=18 |publisher=The Hindu group | publication-place=Madras | accessdate=24 August 2011 | url=http://frontlineonnet.com/fl2018/stories/20030912002104800.htm }}</ref> The Maharajah of Jammu and Kashmir apparently sent a few soldiers to man the abandoned fort at Shahidulla (modern-day ]) at one point, by the time most sources placed Shahidulla and the upper ] firmly within the territory of Xinjiang (see accompanying map). According to ], who explored the region in the late 1880s, there was only an abandoned fort and not one inhabited house at Shahidulla when he was there – it was just a convenient staging post and a convenient headquarters for the nomadic ].<ref>Younghusband, Francis E. (1896). ''The Heart of a Continent''. John Murray, London. Facsimile reprint: (2005) Elbiron Classics, pp. 223–224.</ref> The abandoned fort had apparently been built a few years earlier by the Dogras.<ref>Grenard, Fernand (1904). ''Tibet: The Country and its Inhabitants''. Fernand Grenard. Translated by A. Teixeira de Mattos. Originally published by Hutchison and Co., London. 1904. Reprint: Cosmo Publications. Delhi. 1974, pp. 28–30.</ref> In 1878 the Chinese had reconquered Xinjiang, and by 1890 they already had Shahidulla before the issue was decided.<ref name="Guruswamy"/> By 1892, China had erected boundary markers at ].<ref name="Calvin"/>


==== Since 1947 ====
In 1897 a British military officer, Sir John Ardagh, proposed a boundary line along the crest of the ] north of the ].<ref>{{Cite book
Upon ] in 1947, the government of India fixed its official boundary in the west, which included the Aksai Chin, in a manner that resembled the Ardagh–Johnson Line. India's basis for defining the border was "chiefly by long usage and custom".{{sfnp|Raghavan|2010|p=235}} Unlike the Johnson line, India did not claim the northern areas near ] and ]. From the Karakoram Pass (which is not under dispute), the Indian claim line extends northeast of the Karakoram Mountains north of the salt flats of the Aksai Chin, to set a boundary at the ], and incorporating part of the ] and ] watersheds. From there, it runs east along the Kunlun Mountains, before turning southwest through the Aksai Chin salt flats, through the Karakoram Mountains, and then to ].<ref name="Neville_Maxwell"/>
| last = Woodman
| first = Dorothy
| authorlink =
| coauthors =
| title = Himalayan Frontiers
| publisher = Barrie & Rockcliff
| year = 1969
| location =
| pages = 101 and 360ff
| url =
| doi =
| id =
| isbn = }}</ref> At the time Britain was concerned at the danger of Russian expansion as China weakened, and Ardagh argued that his line was more defensible. The Ardagh line was effectively a modification of the Johnson line, and became known as the "Johnson-Ardagh Line".


On 1 July 1954 Prime Minister ] wrote a memo directing that the maps of India be revised to show definite boundaries on all frontiers. Up to this point, the boundary in the ] sector, based on the Johnson Line, had been described as "undemarcated."<ref name="Noorani"/>
=== The Macartney-Macdonald Line ===
]
In 1893, Hung Ta-chen, a senior Chinese official at ], handed a map of the boundary proposed by China to ], the British ] at Kashgar.<ref name=HimalayanFrontiers>{{cite book|last=Woodman|first=Dorothy|title=Himalayan Frontiers|year=1969|publisher=Barrie & Rockliff, The Cresset Press|location=London}}</ref> This boundary placed the Lingzi Tang plains, which are south of the Laktsang range, in India, and Aksai Chin proper, which is north of the Laktsang range, in China. Macartney agreed with the proposal and forwarded it to the British Indian government. This border, along the ]s, was proposed and supported by British officials for a number of reasons. The Karakoram Mountains formed a natural boundary, which would set the British borders up to the ] ] while leaving the ] watershed in Chinese control, and Chinese control of this tract would present a further obstacle to Russian advance in Central Asia.<ref name="Noorani"/> The British presented this line, known as the ], to the Chinese in 1899 in a note by Sir ]. The Qing government did not respond to the note, and the British took that as Chinese acquiescence.<ref name="Guruswamy"/> Although no official boundary had ever been negotiated, China believed that this had been the accepted boundary.<ref>{{cite web |url=http://www.globalsecurity.org/military/world/war/india-china_conflicts.htm |title=India-China Border Dispute |publisher=GlobalSecurity.org}}</ref><ref name=middlepath>{{cite web|last=Verma|first=Colonel Virendra Sahai|title=Sino-Indian Border Dispute at Aksai Chin – A Middle Path For Resolution|url=http://chinaindiaborderdispute.files.wordpress.com/2010/07/virendravermapaperborderdispute.pdf|accessdate=28 August 2013}}</ref>


=== 1899 to 1947 === === Trans Karakoram Tract ===
{{main|Trans Karakoram Tract}}
Both the Johnson-Ardagh and the Macartney-MacDonald lines were used on British maps of India.<ref name="Guruswamy"/> Until at least 1908, the British took the Macdonald line to be the boundary,<ref>Woodman (1969), p.79</ref> but in 1911, the ] resulted in the collapse of central power in China, and by the end of ], the British officially used the Johnson Line. However they took no steps to establish outposts or assert actual control on the ground.<ref name="Calvin"/> In 1927, the line was adjusted again as the government of British India abandoned the Johnson line in favour of a line along the Karakoram range further south.<ref name="Calvin"/> However, the maps were not updated and still showed the Johnson Line.<ref name="Calvin"/>
The Johnson Line is not used west of the ], where China adjoins Pakistan-administered ]. On 13 October 1962, China and Pakistan began negotiations over the boundary west of the Karakoram Pass. In 1963, the two countries settled their boundaries largely on the basis of the Macartney-MacDonald Line, which left the ] approximately {{cvt|5,180|km2}} to {{cvt|5,300|km2}} in China, although the agreement provided for renegotiation in the event of a settlement of the Kashmir conflict. India does not recognise that Pakistan and China have a common border, and claims the tract as part of the domains of the pre-1947 state of Kashmir and Jammu. However, India's claim line in that area does not extend as far north of the ] Mountains as the Johnson Line. China and India still have disputes on these borders.<ref name="Neville_Maxwell"/>
]
From 1917 to 1933, the "Postal Atlas of China", published by the Government of China in Peking had shown the boundary in Aksai Chin as per the Johnson line, which runs along the ].<ref name=HimalayanFrontiers /><ref name=middlepath /> The "Peking University Atlas", published in 1925, also put the Aksai Chin in India.<ref name="HimalayanBground" />{{rp|101}} When British officials learned of Soviet officials surveying the Aksai Chin for ], warlord of ] in 1940–1941, they again advocated the Johnson Line.<ref name="Guruswamy"/> At this point the British had still made no attempts to establish outposts or control over the Aksai Chin, nor was the issue ever discussed with the governments of China or Tibet, and the boundary remained undemarcated at India's independence.<ref name="Calvin"/><ref name="Guruswamy"/>


=== Since 1947 === ===The McMahon Line===
]
Upon independence in 1947, the government of India used the Johnson Line as the basis for its official boundary in the west, encompassing Aksai Chin.<ref name="Calvin"/> However, India did not claim the northern areas near ] and ], for including which in Indian territory, among other things, Johnson had been criticised. From the Karakoram Pass (which is not under dispute), the Indian claim line extends northeast of the Karakoram Mountains north of the salt flats of the Aksai Chin, to set a boundary at the ], and incorporating part of the ] and ] watersheds. From there, it runs east along the Kunlun Mountains, before turning southwest through the Aksai Chin salt flats, through the Karakoram Mountains, and then to ].<ref name="Neville_Maxwell"/>
{{main|McMahon Line}}


British India annexed ] in northeastern India in 1826, by ] at the conclusion of the ] (1824–1826). After subsequent ], the whole of Burma was annexed giving the British a border with China's ] province.
On 1 July 1954 Prime Minister ] wrote a memo directing that the maps of India be revised to show definite boundaries on all frontiers. Up to this point, the boundary in the ] sector, based on the Johnson Line, had been described as "undemarcated."<ref name="Noorani"/>


In 1913–14, representatives of Great Britain, China, and ] attended a conference in ], India and drew up an agreement concerning Tibet's status and borders. The McMahon Line, a proposed boundary between Tibet and India for the eastern sector, was drawn by British negotiator ] on a map attached to the agreement. All three representatives initialled the agreement, but Beijing soon objected to the proposed Sino-Tibet boundary and repudiated the agreement, refusing to sign the final, more detailed map. After approving a note which stated that China could not enjoy rights under the agreement unless she ratified it, the British and Tibetan negotiators signed the Simla Convention and more detailed map as a bilateral accord. ] states that McMahon had been instructed not to sign bilaterally with Tibetans if China refused, but he did so without the Chinese representative present and then kept the declaration secret.<ref name="Neville_Maxwell"/>
During the 1950s, the People's Republic of China built a {{convert|1200|km}} road connecting ] and western ], of which {{convert|179|km}} ran south of the Johnson Line through the Aksai Chin region claimed by India.<ref name="Calvin"/><ref name="Neville_Maxwell"/><ref name="Guruswamy"/> Aksai Chin was easily accessible from China, but was more difficult for the Indians on the other side of the Karakorams to reach.<ref name="Neville_Maxwell"/> The Indians did not learn of the existence of the road until 1957, which was confirmed when the road was shown in Chinese maps published in 1958.<ref name="Garver"></ref>


V. K. Singh argues that the basis of these boundaries, accepted by British India and Tibet, was that the historical boundaries of India were the ] and the areas south of the Himalayas were traditionally Indian and associated with India. The high watershed of the Himalayas was proposed as the border between India and its northern neighbours. India's government held the view that the Himalayas were the ancient boundaries of the ] and thus should be the modern boundaries of British India and later the ].<ref name="VKSingh">V. K. Singh, , india-seminar.com. {{webarchive|url=https://web.archive.org/web/20061018213033/http://www.india-seminar.com/2006/562/562-vk-singh.htm |date=18 October 2006 }}</ref>
The Indian position, as stated by prime minister ], was that the Aksai Chin was "part of the ] region of India for centuries" and that this northern border was a "firm and definite one which was not open to discussion with anybody".<ref name="Neville_Maxwell"/>


Chinese boundary markers, including one set up by the newly created Chinese Republic, stood near ] until January 1914, when T. O'Callaghan, an assistant administrator of ] (NEFA)'s eastern sector, relocated them north to locations closer to the McMahon Line (albeit still South of the Line). He then went to Rima, met with Tibetan officials, and saw no Chinese influence in the area.{{citation needed|date=February 2024}}
The Chinese minister, ] argued that the western border had never been delimited, that the Macartney-MacDonald Line, which left the Aksai Chin within Chinese borders was the only line ever proposed to a Chinese government, and that the Aksai Chin was already under Chinese jurisdiction, and that negotiations should take into account the status quo.<ref name="Neville_Maxwell"/>

By signing the ] with Tibet, the British had violated the ], in which both parties were not to negotiate with Tibet, "except through the intermediary of the Chinese Government", as well as the ], which bound the British government "not to annex Tibetan territory."<ref name="Gupta">Karunakar Gupta. The McMahon Line 1911–45: The British Legacy, ''The China Quarterly'', No. 47. (Jul. – Sep. 1971), pp. 521–545. {{JSTOR|652324}}</ref> Because of doubts concerning the legal status of the accord, the British did not put the McMahon Line on their maps until 1937, nor did they publish the Simla Convention in the treaty record until 1938. Rejecting Tibet's 1913 declaration of independence, China argued that the Simla Convention and McMahon Line were illegal and that Tibetan government was merely a local government without treaty-making powers.<ref name="Neville_Maxwell" />

The British records show that the Tibetan government's acceptance of the new border in 1914 was conditional on China accepting the Simla Convention. Since the British were not able to get an acceptance from China, Tibetans considered the McMahon line invalid.<ref name="Shakya1999">{{cite book|first=Tsering|last=Shakya|title=The Dragon in the Land of Snows: A History of Modern Tibet Since 1947|url=https://books.google.com/books?id=dosnYnxzTD4C&pg=PA279|year=1999|publisher=Columbia University Press|isbn=978-0-231-11814-9|pages=279–|access-date=31 March 2017|archive-url=https://web.archive.org/web/20170330183541/https://books.google.com/books?id=dosnYnxzTD4C&pg=PA279|archive-date=30 March 2017|url-status=live}}</ref> Tibetan officials continued to administer ] and refused to concede territory during negotiations in 1938. The governor of Assam asserted that Tawang was "undoubtedly British" but noted that it was "controlled by Tibet, and none of its inhabitants have any idea that they are not Tibetan." During World War II, with India's east threatened by Japanese troops and with the threat of Chinese expansionism, British troops secured Tawang for extra defence.{{citation needed|date=February 2024}}

China's claim on areas south of the McMahon Line, encompassed in the NEFA, were based on the traditional boundaries. India believes that the boundaries China proposed in ] and ] have no written basis and no documentation of acceptance by anyone apart from China. The Indian government has argued that China claims the territory on the basis that it was under Chinese imperial control in the past,<ref name="VKSingh"/> while the Chinese government argues that India claims the territory on the basis that it was under British imperial control in the past.<ref>Arthur A. Stahnke. "The Place of International Law in Chinese Strategy and Tactics: The Case of the Sino-Indian Boundary Dispute", ''The Journal of Asian Studies''. Vol. 30, No. 1, Nov 1970. pg. 95–119</ref> The last ] emperor's 1912 edict of abdication authorised its succeeding ] to form a union of "five peoples, namely, ], ], ], ], and ] ''together with their territory in its integrity''."<ref>Qing Dynasty Edict of Abdication, translated by ], ''The Fight for the Republic in China'', London: Hurst & Blackett, Ltd. Paternoster House, E.C. 1918. – Emphasis added, "Muslims" rendered as "Mohammedans" in original translation</ref> However, the practice that India does not place a claim to the regions which previously had the presence of the ] and ], but which were heavily influenced by Indian culture, further complicates the issue.<ref name="VKSingh"/>

India's claim line in the eastern sector follows its interpretation of the McMahon Line. The line drawn by McMahon on the ] clearly starts at 27°45’40"N, a trijunction between Bhutan, China, and India, and from there, extends eastwards.<ref name="Neville_Maxwell"/> Most of the fighting in the eastern sector before the start of the war would take place immediately north of this line.<ref>{{cite web |author=A.G. Noorani |archive-url= https://web.archive.org/web/20050326174852/http://www.hinduonnet.com/fline/fl2017/stories/20030829001604900.htm |archive-date=2005-03-26 |url=http://www.hinduonnet.com/fline/fl2017/stories/20030829001604900.htm |url-status=dead |title=Perseverance in peace process |work=Frontline |date=29 August 2003}}</ref> However, India claimed that the ''intent'' of the treaty was to follow the main watershed ridge divide of the Himalayas based on memos from McMahon and the fact that over 90% of the McMahon Line does in fact follow the main watershed ridge divide of the Himalayas.{{cn|date=September 2024}} They claimed that territory south of the high ridges here near Bhutan (as elsewhere along most of the McMahon Line) should be Indian territory and north of the high ridges should be Chinese territory. In the Indian claim, the two armies would be separated from each other by the highest mountains in the world.{{cn|date=September 2024}}

During and after the 1950s, when India began patrolling this area and mapping in greater detail, they confirmed what the 1914 Simla agreement map depicted: six river crossings that interrupted the main Himalayan watershed ridge. At the westernmost location near Bhutan north of Tawang, they modified their maps to extend their claim line northwards to include features such as Thag La ridge, Longju, and Khinzemane as Indian territory.<ref name="Neville_Maxwell"/> Thus, the Indian version of the McMahon Line moves the Bhutan-China-India trijunction north to 27°51’30"N from 27°45’40"N.<ref name="Neville_Maxwell"/> India would claim that the treaty map ran along features such as Thag La ridge, though the actual treaty map itself is topographically vague (as the treaty was not accompanied with demarcation) in places, shows a straight line (not a watershed ridge) near Bhutan and near Thag La, and the treaty includes no verbal description of geographic features nor description of the highest ridges.<ref name="Neville_Maxwell"/><ref>{{cite journal|first1=T. S.|last1=Murty|first2=Neville|last2=Maxwell|jstor=652270 |title=Tawang and "The Un-Negotiated Dispute"|journal=The China Quarterly|issue=46|date=Apr–Jun 1971|volume=46 |pages=357–362|doi=10.1017/S0305741000010754 |s2cid=154868693 }}</ref>

===Sikkim===
]
The ] were a series of military clashes in 1967 between India and China alongside the border of the Himalayan ], then an Indian ]. The end of the conflicts saw a Chinese military withdrawal from Sikkim.

In 1975, the Sikkimese monarchy held a ], in which the Sikkemese voted overwhelmingly in favour of joining India.<ref>{{Cite web |title=Sikkim (Indien), 14. April 1975 : Abschaffung der Monarchie -- |website=www.sudd.ch |date=14 April 1975 |url=http://www.sudd.ch/event.php?lang=en&id=in011975 |url-status=live |archive-url=https://web.archive.org/web/20170818220430/http://www.sudd.ch/event.php?lang=en&id=in011975 |archive-date=18 August 2017}}</ref><ref>{{Cite news |url=https://www.nytimes.com/1975/04/16/archives/sikkim-votes-to-end-monarchy-merge-with-india.html |title=Sikkim Votes to End Monarchy, Merge With India |date=16 April 1975 |newspaper=The New York Times |url-status=live |archive-url=https://web.archive.org/web/20170819022845/http://www.nytimes.com/1975/04/16/archives/sikkim-votes-to-end-monarchy-merge-with-india.html |archive-date=19 August 2017}}</ref> At the time China protested and rejected it as illegal. The Sino-Indian Memorandum of 2003 was hailed as a ''de facto'' Chinese acceptance of the annexation.<ref name="Rajan">{{cite web|author=D. S. Rajan |date=10 June 2008 |url=http://www.southasiaanalysis.org/%5Cpapers28%5Cpaper2732.html |title=China: An internal Account of Startling Inside Story of Sino-Indian Border Talks |publisher=South Asia Analysis Group |archive-url=https://web.archive.org/web/20100613183426/http://www.southasiaanalysis.org/%5Cpapers28%5Cpaper2732.html |archive-date=13 June 2010 |url-status=usurped}}</ref> China published a map showing Sikkim as a part of India and the Foreign Ministry deleted it from the list of China's "border countries and regions".<ref name="Rajan"/> However, the Sikkim-China border's northernmost point, "The Finger", continues to be the subject of dispute and military activity.<ref name="Sudha">{{cite web |author=Sudha Ramachandran |archive-url=https://web.archive.org/web/20080905125703/http://www.atimes.com/atimes/South_Asia/JF27Df01.html |archive-date=2008-09-05 |title=China toys with India's border |website=Asia Times Online |date=27 June 2008 |url=http://www.atimes.com/atimes/South_Asia/JF27Df01.html |url-status=unfit}}</ref>

Chinese Prime Minister ] said in 2005 that "Sikkim is no longer the problem between China and India."<ref>{{Cite book |url=https://books.google.com/books?id=xvCrAgAAQBAJ&pg=PA80 |title=Handbook of India's International Relations |last=Scott |first=David |year=2011 |publisher=Routledge |isbn=9781136811319 |pages=80 }}</ref>

== Boundary disputes ==

=== 1947–1962 ===

During the 1950s, the People's Republic of China built a {{convert|1200|km}} ] connecting ] and western ], of which {{convert|179|km}} ran south of the Johnson Line through the Aksai Chin region claimed by India.<ref name="Neville_Maxwell"/> Aksai Chin was easily accessible from China, but for the Indians on the south side of the Karakoram, the mountain range proved to be a complication in their access to Aksai Chin.<ref name="Neville_Maxwell"/> The Indians did not learn of the existence of the road until 1957, which was confirmed when the road was shown in Chinese maps published in 1958.<ref name="Garver">* {{citation |last=Garver |first=John W. |chapter=China's Decision for War with India in 1962 |editor-first=Robert S. |editor-last=Ross |title=New Directions in the Study of China's Foreign Policy |url=https://books.google.com/books?id=DCihrQEdPzAC |chapter-url=http://indianstrategicknowledgeonline.com/web/china%20decision%20for%201962%20war%202003.pdf |year=2006 |publisher=Stanford University Press |isbn=978-0-8047-5363-0 |url-status=live |archive-url=https://web.archive.org/web/20170828015135/https://books.google.com/books?id=DCihrQEdPzAC |archive-date=28 August 2017}}
</ref>

The Indian position, as argued by prime minister ], was that the Aksai Chin was "part of the ] region of India for centuries".<ref name="Neville_Maxwell"/>

The Chinese premier ] argued that the western border had never been delimited, that the Macartney-MacDonald Line, which left part of Aksai Chin within Chinese borders was the only line ever proposed to a Chinese government. He also claimed that Aksai Chin was already under Chinese jurisdiction, and that negotiations should take into account the status quo.<ref name="Neville_Maxwell"/>

In 1960, Nehru and ] agreed to hold discussions between officials from India and China for examining the historical, political and administrative basis of the boundary dispute.<ref name="HimalayanBground">{{harvp|Fisher|Rose|Huttenback|1963|p=91}}</ref> The two sides disagreed on the major watershed that defined the boundary in the western sector.<ref name="HimalayanBground" />{{rp|96}} The Chinese statements with respect to their border claims often misrepresented the cited sources.{{sfnp|Fisher|Rose|Huttenback|1963|loc=p. 99: "... suffice it to say here that an essential part of our narrative will document our conclusion that the case the Chinese presented was a shoddy piece of work, betraying—if only to those in a position to consult the sources cited—a fundamental contempt for evidence."}}

=== 1967 Nathu La and Cho La clashes ===
The ] were a series of military clashes in 1967, between India and China alongside the border of the Himalayan Kingdom of Sikkim, then an Indian protectorate.<ref>{{cite news |last=Krishnan |first=Ananth|date=30 July 2017|title=The last Sikkim stand-off: When India gave China a bloody nose in 1967|url=https://www.indiatoday.in/world/asia/story/india-china-stand-off-sikkim-stand-off-tulung-la-nathu-la-pass-doklam-plateau-1021579-2017-06-30|newspaper=India Today|access-date=27 May 2020 |archive-url=https://web.archive.org/web/20181225173400/https://www.indiatoday.in/world/asia/story/india-china-stand-off-sikkim-stand-off-tulung-la-nathu-la-pass-doklam-plateau-1021579-2017-06-30|archive-date=25 December 2018|url-status=live}}</ref><ref>{{cite news|last=Rana|first=Sonal|date=7 September 2018|title=Know about the Nathu La and Cho La clashes of 1967 that inspired Paltan|newspaper=The Statesman|url=https://www.thestatesman.com/entertainment/bollywood/1967-nathu-la-cho-la-clashes-paltan-story-1502681946.html|access-date=27 May 2020|archive-date=27 November 2022|archive-url=https://web.archive.org/web/20221127144459/https://www.thestatesman.com/entertainment/bollywood/1967-nathu-la-cho-la-clashes-paltan-story-1502681946.html|url-status=live}}</ref>

The Nathu La clashes started on 11 September 1967, when the People's Liberation Army (PLA) launched an attack on Indian posts at Nathu La, and lasted till 15 September 1967. In October 1967, another military duel took place at Cho La and ended on the same day.{{sfnp|Sali|1998|p=}}

According to independent sources{{which|date=February 2023}}, the Indian forces achieved "decisive tactical advantage" and defeated the Chinese forces in these clashes. Many PLA fortifications at Nathu La were said to be destroyed, where the Indian troops drove back the attacking Chinese forces.<ref>{{cite news|last=Patranobis|first=Sutirtho |date=1 July 2017|title=Lessons for India and China from 1967 Nathu La clash|newspaper=Hindustan Times |url=https://www.hindustantimes.com/world-news/lessons-for-india-and-china-from-1967-nathu-la-clash/story-IjZMtQb92D98pFgiCFN3ON.html|access-date=27 May 2020|url-status=live|archive-date=6 November 2018|archive-url=https://web.archive.org/web/20181106023950/https://www.hindustantimes.com/world-news/lessons-for-india-and-china-from-1967-nathu-la-clash/story-IjZMtQb92D98pFgiCFN3ON.html}}</ref>

=== 1987 Sino Indian skirmish ===
{{Main|Sumdorong Chu standoff}}
The 1987 Sino-Indian skirmish was the third military conflict between the Chinese People's Liberation Army Ground Force and Indian Army that occurred at the Sumdorong Chu Valley, with the previous one taking place 20 years earlier.<ref>{{Cite web|url=http://mil.qianlong.com/37076/2009/11/02/3943@5239534.htm|archive-url=https://web.archive.org/web/20091111110322/http://mil.qianlong.com/37076/2009/11/02/3943%405239534.htm|url-status=dead|title=1987中印边境冲突:印军最后时刻撤销攻击令 (1987 Sino-Indian skirmish military conflicts)|archive-date=11 November 2009}}</ref>

=== "1968–2017" ===
]
On 20 October 1975, 4 Indian soldiers were killed at ] in ].<ref>{{Cite news|url=https://www.thehindu.com/news/national/forgotten-in-fog-of-war-the-last-firing-on-the-india-china-border/article31827344.ece|title=Forgotten in fog of war, the last firing on the India-China border|first=Ananth|last=Krishnan|date=14 June 2020|newspaper=The Hindu|access-date=17 June 2020|archive-date=30 December 2022|archive-url=https://web.archive.org/web/20221230053651/https://www.thehindu.com/news/national/forgotten-in-fog-of-war-the-last-firing-on-the-india-china-border/article31827344.ece|url-status=live}}</ref><ref>{{Cite web|url=https://theprint.in/india/1975-arunachal-ambush-the-last-time-indian-soldiers-died-in-clash-with-china-at-lac/442674/|title=1975 Arunachal ambush — the last time Indian soldiers died in clash with China at LAC|first=Srijan|last=Shukla|website=] |date=16 June 2020|access-date=17 June 2020|archive-date=17 June 2020|archive-url=https://web.archive.org/web/20200617075009/https://theprint.in/india/1975-arunachal-ambush-the-last-time-indian-soldiers-died-in-clash-with-china-at-lac/442674/|url-status=live}}</ref> According to the official statement by the Indian government, a patrol of the Assam Rifles comprising a non-commissioned officer (NCO) and four other soldiers was ambushed by about 40 Chinese soldiers while in an area well within Indian territory, and which had been regularly patrolled for years without incident. Four members of the patrol unit were initially listed as missing before confirmation via diplomatic channels they had been killed by the Chinese troops; their bodies were later returned. The Indian government registered a strong protest with the Chinese.<ref>{{cite web|title=Spokesman's Statement|website=Press Information Bureau of India - Archive|date=1 November 1975|url=http://pibarchive.nic.in/archive/ArchiveSecondPhase/EXTERNAL%20AFFAIRS/1975-SEPT-DEC-EXTERNAL-AFFAIRS-VOL-III/EXT-1975-11-01_145.pdf|access-date=23 June 2020|archive-date=26 June 2020|archive-url=https://web.archive.org/web/20200626122320/http://pibarchive.nic.in/archive/ArchiveSecondPhase/EXTERNAL%20AFFAIRS/1975-SEPT-DEC-EXTERNAL-AFFAIRS-VOL-III/EXT-1975-11-01_145.pdf|url-status=live}}</ref>

In 2006, the Chinese ambassador to India claimed that all of Arunachal Pradesh is Chinese territory<ref name="Rediff"> ''Rediff India Abroad,'' 14 November 2006. {{webarchive|url=https://web.archive.org/web/20111108041416/http://www.rediff.com/news/2006/nov/14china.htm|date=8 November 2011}}</ref> amidst a military buildup.<ref>Subir Bhaumik, , ''BBC'', 23 November 2010. {{webarchive|url=https://web.archive.org/web/20120102000047/http://www.bbc.co.uk/news/world-south-asia-11818840|date=2 January 2012}}</ref> At the time, both countries claimed incursions as much as a kilometre at the northern tip of ].<ref name="Sudha" /> In 2009, India announced it would deploy additional military forces along the border.<ref name="WSJ">{{citation|title=The China-India Border Brawl|date=24 June 2009|url=http://online.wsj.com/article/SB124578881101543463.html|newspaper=The Wall Street Journal|archive-url=https://web.archive.org/web/20110923151949/http://online.wsj.com/article/SB124578881101543463.html|archive-date=23 September 2011|url-status=live}}</ref> In 2014, India proposed China should acknowledge a "One India" policy to resolve the border dispute.<ref>{{Cite news|last=何|first=宏儒|date=12 June 2014|title=外長會 印向陸提一個印度政策|work=中央通訊社|location=新德里|url=http://www.cna.com.tw/news/aopl/201406120234-1.aspx|url-status=live|access-date=27 February 2017|archive-url=https://web.archive.org/web/20170227233221/http://www.cna.com.tw/news/aopl/201406120234-1.aspx|archive-date=27 February 2017}}</ref><ref>{{Cite web|title=印度外長敦促中國重申「一個印度」政策 |url=http://www.bbc.com/zhongwen/trad/world/2014/09/140908_india_china|url-status=live|archive-url=https://web.archive.org/web/20170227231948/http://www.bbc.com/zhongwen/trad/world/2014/09/140908_india_china|archive-date=27 February 2017|access-date=27 February 2017|work=BBC 中文网|date=9 September 2014}}</ref>

{{Quote box
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| quote = The reactions of Indian officials to these successive incursions have also been to a pattern:
*Suppress information
*Deny
Who is misled when information is suppressed? Not the Chinese— Not other countries, be they the US or Vietnam The people who are lulled are the people of India. And the object of lulling them is straightforward—not just that they should not come to think that their government has been negligent, but that they should not pressurize the government into doing anything more than what it is doing.
| author = ]
| source = Self-Deception: India's China Policies, 2013<ref>{{Cite book|last=Shourie|first=Arun|url=https://books.google.com/books?id=iNjiDwAAQBAJ|title=Self-Deception: India's China Policies|date=2013-09-01|publisher=HarperCollins|isbn=978-93-5116-094-6|chapter=1|access-date=30 October 2020|archive-date=28 December 2022|archive-url=https://web.archive.org/web/20221228014759/https://books.google.com/books?id=iNjiDwAAQBAJ|url-status=live}}</ref>
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In April 2013 India claimed, referencing their own perception<ref name="Indian LAC perception">{{cite news In April 2013 India claimed, referencing their own perception<ref name="Indian LAC perception">{{cite news
| url = http://articles.timesofindia.indiatimes.com/2013-04-26/india/38842635_1_pla-troops-indian-military-delegation-lt-general-b-s-jaswal | url = https://timesofindia.indiatimes.com/india/Chinas-Ladakh-intrusion-well-planned-but-govt-playing-it-down/articleshow/19733737.cms
| title = China's Ladakh Incursion Well-planned | title = China's Ladakh Incursion Well-planned
| url-status = live
| archive-url = https://web.archive.org/web/20170819022845/http://www.nytimes.com/1975/04/16/archives/sikkim-votes-to-end-monarchy-merge-with-india.html
| work = ]
| archive-date = 19 August 2017}}
</ref> of the Line of Actual Control (LAC) location, that ] had ] a camp in the ] sector, {{cvt|10|km}} on their side of the Line of Actual Control. This figure was later revised to a {{cvt|19|km}} claim. According to Indian media, the incursion included Chinese military helicopters entering Indian airspace to drop supplies to the troops. However, Chinese officials denied any trespassing having taken place.<ref>{{citation |title=India sends out doves, China sends in chopper |newspaper=Hindustan Times |url=http://www.hindustantimes.com/India-news/JAndK/After-incursion-China-s-helicopters-violate-Indian-airspace/Article1-1049762.aspx |url-status=dead |archive-url=https://web.archive.org/web/20130527155029/http://www.hindustantimes.com/India-news/JAndK/After-incursion-China-s-helicopters-violate-Indian-airspace/Article1-1049762.aspx |archive-date=27 May 2013 }}</ref><ref>{{citation |url=http://www.hindustantimes.com/India-news/NewDelhi/India-moves-in-more-troops-stand-off-with-china-escalates/Article1-1048784.aspx |title=India, China caught in a bitter face-off |newspaper=Hindustan Times |url-status=dead |archive-url=https://web.archive.org/web/20130526205811/http://www.hindustantimes.com/India-news/NewDelhi/India-moves-in-more-troops-stand-off-with-China-escalates/Article1-1048784.aspx |archive-date=26 May 2013}}</ref> Soldiers from both countries briefly set up camps on the ill-defined frontier facing each other, but the tension was defused when both sides pulled back soldiers in early May.<ref>{{cite news |url=https://www.bbc.co.uk/news/world-asia-india-22423999 |title=India and China 'pull back troops' in disputed border area |newspaper=BBC News |access-date=14 September 2015 |url-status=live |archive-url=https://web.archive.org/web/20150513174736/http://www.bbc.co.uk/news/world-asia-india-22423999 |archive-date=13 May 2015|date=6 May 2013 }}</ref> In September 2014, India and China had a standoff at the LAC, when Indian workers began constructing a canal in the border village of ], and Chinese civilians protested with the army's support. It ended after about three weeks, when both sides agreed to withdraw troops.<ref>{{cite news |url=https://www.nytimes.com/2014/09/27/world/asia/india-china-ladakh-dispute.html |title=India and China Step Back From Standoff in Kashmir |first=Hari |last=Kumar |date=26 September 2014a |newspaper=The New York Times|url-status=live |archive-url=https://web.archive.org/web/20160720185413/http://www.nytimes.com/2014/09/27/world/asia/india-china-ladakh-dispute.html |archive-date=20 July 2016}}</ref> The Indian army claimed that the Chinese military had set up a camp {{cvt|3|km}} inside territory claimed by India.<ref>{{citation |title=Chinese and Indian troops in Himalayan standoff |work=Reuters |url=http://in.reuters.com/article/india-china-idINKCN0HI10C20140923 |url-status=dead |archive-url=https://web.archive.org/web/20160911230230/http://in.reuters.com/article/india-china-idINKCN0HI10C20140923 |archive-date=11 September 2016|date=23 September 2014 }}</ref> According to scholar Harsh V. Pant, China gains territory with every incursion.<ref>{{citation |title=Why border stand-offs between India and China are increasing |newspaper=BBC News |url=https://www.bbc.com/news/world-asia-india-29373304 |url-status=live |archive-url=https://web.archive.org/web/20160912094720/http://www.bbc.com/news/world-asia-india-29373304 |archive-date=12 September 2016 |date=26 September 2014 }}</ref>

In September 2015, Chinese and Indian troops faced off in the Burtse region of ] after Indian troops dismantled a disputed watchtower the Chinese were building close to the mutually agreed patrolling line.<ref>{{citation |title=India-China troops face-off near Line of Actual Control in Ladakh |newspaper=The Economic Times |url=http://economictimes.indiatimes.com/news/defence/india-china-troops-face-off-near-line-of-actual-control-in-ladakh/articleshow/48937565.cms |url-status=live |archive-url=https://web.archive.org/web/20150915004913/http://economictimes.indiatimes.com/news/defence/india-china-troops-face-off-near-line-of-actual-control-in-ladakh/articleshow/48937565.cms |archive-date=15 September 2015 |date=13 July 2018 }}</ref>

=== 2017 Doklam military standoff ===
{{image frame
|content={{Graph:Chart
| width=300 | height=120
| xAxisTitle=Year
| yAxisTitle=No. of Chinese transgressions
| legend=Legend
| type=stackedrect
| x=2015, 2016, 2017, 2018, 2019
| y1=164, 77, 112, 72, 142
| y2=92, 64, 127, 99, 116
| y3=67, 50, 75, 83, 157
| y4=69, 65, 90, 37, 68
| y1Title=Pangong Tso
| y2Title=Trig Heights
| y3Title=Burste
| y4Title=Dichu
| colors=DarkTurquoise, CadetBlue, LightSteelBlue, SteelBlue
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|width=465
|caption=Major sites of Chinese transgressions on the LAC (2015–2019) per official ] and ] data<ref>{{Cite web|url = https://indianexpress.com/article/india/chinese-transgression-line-of-actual-control-indian-territory-galwan-river-6423131/|title = Chinese troops focus on 4 LAC locations, test new areas in Ladakh|date = 23 May 2020|access-date = 24 February 2021|archive-date = 8 March 2021|archive-url = https://web.archive.org/web/20210308165419/https://indianexpress.com/article/india/chinese-transgression-line-of-actual-control-indian-territory-galwan-river-6423131///|url-status = live}}</ref><ref>{{Cite web|url = https://indianexpress.com/article/india/aksai-chin-army-big-surge-in-chinese-transgressions-most-of-them-in-ladakh-6421674/|title = Big surge in Chinese transgressions, most of them in Ladakh|date = 22 May 2020|access-date = 24 February 2021|archive-date = 8 March 2021|archive-url = https://web.archive.org/web/20210308130307/https://indianexpress.com/article/india/aksai-chin-army-big-surge-in-chinese-transgressions-most-of-them-in-ladakh-6421674/|url-status = live}}</ref>
|border=no
}} }}
</ref> of the Line of Actual Control (LAC) location, that ] had ] a camp in the ] sector, 10&nbsp;km on their side of the Line of Actual Control. This figure was later revised to a 19&nbsp;km claim. According to Indian media, the incursion included Chinese military helicopters entering Indian airspace to drop supplies to the troops. However, Chinese officials denied any trespassing having taken place.<ref></ref><ref></ref> Soldiers from both countries briefly set up camps on the ill-defined frontier facing each other, but the tension was defused when both sides pulled back soldiers in early May.<ref></ref> In September 2014, India and China had a standoff at the LAC, when Indian workers began constructing a canal in the border village of ], and Chinese civilians protested with the army's support. It ended after about three weeks, when both sides agreed to withdraw troops.<ref>{{cite news |url=http://www.nytimes.com/2014/09/27/world/asia/india-china-ladakh-dispute.html |title=India and China Step Back From Standoff in Kashmir |author=Hari Kumar |date=26 September 2014 |newspaper=New York Times }}</ref>


In June, ] in the disputed territory of ], near the Doka La pass. On 16 June 2017, the Chinese brought heavy road building equipment to the Doklam region and began constructing a road in the disputed area.<ref name="cf.orfonline.org">Manoj Joshi, {{Webarchive|url=https://web.archive.org/web/20171030195901/http://cf.orfonline.org/wp-content/uploads/2017/08/ORF_SpecialReport_40_Doklam.pdf |date=30 October 2017 }}</ref> Previously, China had built a dirt road terminating at Doka La where Indian troops were stationed.<ref name="cf.orfonline.org"/> They would conduct foot patrol from this point up till the Royal Bhutanese Army (RBA) post at Jampheri Ridge.<ref name="cf.orfonline.org"/> The dispute that ensued post 16 June stemmed from the fact that the Chinese had begun building a road below Doka La, in what India and Bhutan claim to be disputed territory.<ref name="cf.orfonline.org"/> This resulted in Indian intervention of China's road construction on 18 June, two days after construction began. Bhutan claims that the Chinese have violated the written agreements between the two countries that were drawn up in 1988 and 1998 after extensive rounds of talks.<ref name="thewire.in">Manoj Joshi, {{Webarchive|url=https://web.archive.org/web/20170804013614/https://thewire.in/159407/doklam-india-china-bhutan/ |date=4 August 2017 }}</ref> The agreements drawn state that status quo must be maintained in the Doklam area as of before March 1959.<ref name="thewire.in"/> It is these agreements that China has violated by constructing a road below Doka La. A series of statements from each countries' respective External Affairs ministries were issued defending each countries' actions. Due to the ambiguity of earlier rounds of border talks beginning from the 1890 Anglo-Chinese Convention that was signed in Kolkata on 17 March 1890, each country refers to different agreements drawn when trying to defend its position on the border dispute.<ref name="cf.orfonline.org"/><ref name="thewire.in"/> Following the incursion, on 28 June, the Chinese military claimed that India had blocked the construction of a road that was taking place in China's sovereign territory.<ref name="hindustantimes.com">HT Correspondent {{Webarchive|url=https://web.archive.org/web/20171107221256/http://www.hindustantimes.com/india-news/blow-by-blow-a-timeline-of-india-china-face-off-over-doklam/story-qBIEwZI7kUcXxNmCfHzHCP.html |date=7 November 2017 }}</ref> On 30 June, India's Foreign Ministry claimed that China's road construction in violation of the status quo had security implications for India.<ref>A Staff Writer {{Webarchive|url=https://web.archive.org/web/20171102221257/http://www.livemint.com/Politics/cnn184rRa6dVvFKfivST8M/A-timeline-to-the-Doklam-standoff.html |date=2 November 2017 }}</ref> Following this, on 5 July, Bhutan issued a demarche asking China to restore the status quo as of before 16 June.<ref>Shishir Gupta, {{Webarchive|url=https://web.archive.org/web/20171102215149/http://www.hindustantimes.com/india-news/bhutan-ticks-off-beijing-registers-protest-over-border-dispute-that-sparked-india-china-face-off-in-sikkim/story-fGygCbDjZbPi33qSPRBw6H.html |date=2 November 2017 }}</ref> Throughout July and August, the Doklam issue remained unresolved. On 28 August, India issued a statement saying that both countries have agreed to "expeditious disengagement" in the Doklam region.<ref name="hindustantimes.com"/>
=== Trans Karakoram Tract ===
{{main|Trans Karakoram Tract}}
The Johnson Line is not used west of the ], where China adjoins Pakistan-administered ]. On 13 October 1962, China and Pakistan began negotiations over the boundary west of the Karakoram Pass. In 1963, the two countries settled their boundaries largely on the basis of the Macartney-MacDonald Line, which left the ] in China, although the agreement provided for renegotiation in the event of a settlement of the ]. India does not recognise that Pakistan and China have a common border, and claims the tract as part of the domains of the pre-1947 state of Kashmir and Jammu. However, India's claim line in that area does not extend as far north of the ] Mountains as the Johnson Line<ref name="Neville_Maxwell"/>


In 2019, India and China decided to coordinate border patrolling at one disputed point along the LAC.<ref>{{Cite web|last=|first=|date=|title=Military and Security Developments Involving the People's Republic of China 2020: Annual Report to Congress|url=https://media.defense.gov/2020/Sep/01/2002488689/-1/-1/1/2020-DOD-CHINA-MILITARY-POWER-REPORT-FINAL.PDF|access-date=|website=30 January 2021|publisher=Office of the Secretary of Defense|page=10|archive-date=6 November 2022|archive-url=https://web.archive.org/web/20221106115720/https://media.defense.gov/2020/Sep/01/2002488689/-1/-1/1/2020-DOD-CHINA-MILITARY-POWER-REPORT-FINAL.PDF|url-status=live}}</ref>
==The McMahon Line==
]
{{main|McMahon Line}}


=== 2020–2022 skirmishes ===
British India and China gained a common border in 1826, with British annexation of ] in the ] at the conclusion of the ] (1824–1826). Subsequent annexations in further ] expanded China's borders with British India eastwards, to include the border with what is now ].
{{Main|2020–2022 China–India skirmishes|Timeline of the 2020–2022 China–India skirmishes}}
In June 2020, Indian and Chinese troops engaged in a brawl in the ] valley which reportedly led to the deaths of 20 Indian soldiers. International media claimed 40+ Chinese soldiers had been killed, but this number has not been confirmed by Chinese authorities.<ref>{{Cite news|last1=Gettleman|first1=Jeffrey|last2=Kumar|first2=Hari|last3=Yasir|first3=Sameer|date=16 June 2020|title=3 Indian Soldiers Killed in First Deadly Clash on Chinese Border in Decades|work=The New York Times|url=https://www.nytimes.com/2020/06/16/world/asia/indian-china-border-clash.html|access-date=16 June 2020|issn=0362-4331|archive-date=16 June 2020|archive-url=https://web.archive.org/web/20200616084004/https://www.nytimes.com/2020/06/16/world/asia/indian-china-border-clash.html|url-status=live}}</ref><ref>{{Cite web|url=https://zeenews.india.com/india/over-40-chinese-troops-killed-in-galwan-valley-violent-clash-sources-2291138.html|title=Indian soldiers killed over 40 Chinese troops during Galwan Valley clashes, captured PLA Colonel|date=21 June 2020|website=Zee News|access-date=25 June 2020|archive-date=21 June 2020|archive-url=https://web.archive.org/web/20200621131745/https://zeenews.india.com/india/over-40-chinese-troops-killed-in-galwan-valley-violent-clash-sources-2291138.html|url-status=live}}</ref>


== Timeline ==
In 1913–14, representatives of Britain, China, and ] attended a conference in ], India and drew up an agreement concerning Tibet's status and borders. The ], a proposed boundary between Tibet and India for the eastern sector, was drawn by British negotiator ] on a map attached to the agreement. All three representatives initiated the agreement, but Beijing soon objected to the proposed Sino-Tibet boundary and repudiated the agreement, refusing to sign the final, more detailed map. After approving a note which stated that China could not enjoy rights under the agreement unless she ratified it, the British and Tibetan negotiators signed the Simla Convention and more detailed map as a bilateral accord. ] states that McMahon had been instructed not to sign bilaterally with Tibetans if China refused, but he did so without the Chinese representative present and then kept the declaration secret.<ref name="Neville_Maxwell"/>
{{India China border timeline}}


== Boundary discussions ==
V.K. Singh argues that the basis of these boundaries, accepted by British India and Tibet, were that the historical boundaries of India were the ] and the areas south of the Himalayas were traditionally Indian and associated with India.<ref name="VKSingh"/> The high watershed of the Himalayas was proposed as the border between India and its northern neighbours.<ref name="VKSingh"/> India's government held the view that the Himalayas were the ancient boundaries of the ] and thus should be the modern boundaries of ] and later the ].<ref name="VKSingh"/>
{{See also|2024 India-China Border Patrol Agreement}}
One of the first set of formal talks between China and India on the border were following Zhou Enlai's visit to India in 19–25 April 1960.{{Sfnp|Westcott|2017|p=314}} Following this there were a further three sessions of talks, the "Official's" talks, between— 15 June-6 July 1960; 15 August-24 September 1960; and 7 November-12 December 1960.{{Sfnp|Westcott|2017|p=314}} These discussions produced the ']'.<ref>{{Cite web|last=Patranobis|first=Sutirtho|date=2017-12-21|title=India-China border talks and war: Here is how it all began|url=https://www.hindustantimes.com/world-news/india-china-border-talks-and-war-here-is-how-it-all-began/story-ncZh1mxT2vRjwRRD4l2PMI.html|access-date=2021-03-04|website=Hindustan Times|archive-date=25 May 2021|archive-url=https://web.archive.org/web/20210525062406/https://www.hindustantimes.com/world-news/india-china-border-talks-and-war-here-is-how-it-all-began/story-ncZh1mxT2vRjwRRD4l2PMI.html|url-status=live}}</ref>


Boundary discussions have covered micro and macro issues of the dispute. At a local level, localised disputes and related events such as de-engagement and de-escalation are tackled. Wider overarching issues include discussion related to a package settlement versus sector-wise,{{Sfnp|Sali|1998|p=104}} clarification of the LAC and border and accordingly the exchange of maps,<ref>{{Cite web|date=1996|title=Agreement between India and China on Confidence-Building Measures in the Military Field along the Line of Actual Control in the India-China Border Areas|url=https://peacemaker.un.org/chinaindiaconfidenceagreement96#:~:text=This%20agreement%20provides%20for%20border,levels%20in%20the%20border%20areas.|access-date=2021-02-27|website=peacemaker.un.org|archive-date=11 April 2021|archive-url=https://web.archive.org/web/20210411110037/https://peacemaker.un.org/chinaindiaconfidenceagreement96#:~:text=This%20agreement%20provides%20for%20border,levels%20in%20the%20border%20areas.|url-status=live}}</ref> and delinking or linking the boundary dispute to other bilateral ties.<ref>{{cite news|date=5 August 2020|title=Keep border dispute & bilateral ties separate, China tells India|work=The Times of India|url=https://timesofindia.indiatimes.com/india/keep-border-dispute-bilateral-ties-separate-china-tells-india/articleshow/77362414.cms|access-date=16 September 2020|archive-date=28 September 2020|archive-url=https://web.archive.org/web/20200928183434/https://timesofindia.indiatimes.com/india/keep-border-dispute-bilateral-ties-separate-china-tells-india/articleshow/77362414.cms|url-status=live}}</ref>
Chinese boundary markers, including one set up by the newly created Chinese Republic, stood near ] until January 1914, when T. O'Callaghan, an assistant administrator of ] (NEFA)'s eastern sector, relocated them north to locations closer to the McMahon Line (albeit still South of the Line).<ref name = "Calvin"/> He then went to Rima, met with Tibetan officials, and saw no Chinese influence in the area.<ref name="Calvin"/>


=== Package proposal ===
By signing the Simla Agreement with Tibet, the British had violated the ], in which both parties were not to negotiate with Tibet, "except through the intermediary of the Chinese Government", as well as the ], which bound the British government "not to annex Tibetan territory."<ref name="Gupta">Karunakar Gupta. "". The China Quarterly, No. 47. (Jul. – Sep. 1971), pp. 521–545.</ref> Because of doubts concerning the legal status of the accord, the British did not put the McMahon Line on their maps until 1937, nor did they publish the Simla Convention in the treaty record until 1938. Rejecting Tibet's 1913 declaration of independence, China argued that the Simla Convention and McMahon Line were illegal and that Tibetan government was merely a local government without treaty-making powers. In 1947, Tibet requested that India recognise Tibetan authority in the trading town of ], south of the McMahon Line. Tibet did not object to any other portion of the McMahon line. In reply, the Indians asked Tibet to continue the relationship on the basis of the previous British Government.<ref name="Neville_Maxwell" />
China made the so-called "package" offer in 1960, which again came to the table in 1980–85. As explained by former foreign secretary ], China "would be prepared to accept an alignment in the Eastern Sector, in general conforming to the McMahon Line, but India would have to concede Aksai Chin to China in the Western Sector For the Central Sector, the differences were regarded as relatively minor and manageable."<ref name=":7">{{Cite web|last=Saran|first=Shyam|date=12 May 2015|title=An Out of the Box Solution to the India-China Boundary Dispute?|url=https://thewire.in/diplomacy/not-quite-out-of-the-box-right-yet|access-date=2021-03-05|website=The Wire|archive-date=13 March 2021|archive-url=https://web.archive.org/web/20210313050617/https://thewire.in/diplomacy/not-quite-out-of-the-box-right-yet|url-status=live}}</ref> In other words, China "offered to hold 26% of the disputed land".<ref>{{Cite journal|last=Fravel|first=M. Taylor|date=October 2005|title=Regime Insecurity and International Cooperation: Explaining China's Compromises in Territorial Disputes |journal=International Security|volume=30|issue=2|pages=56|doi=10.1162/016228805775124534|s2cid=56347789 |issn=0162-2889|quote=China offered to hold 26% of the disputed land}}</ref>


In 1985 China made modifications to the package— "the Indian side would have to make significant and meaningful concessions in the Eastern Sector... for which China would make corresponding but undefined concessions in the Western Sector". Additionally, ] was brought up "as indispensable to any boundary settlement". These changes in the package proposal by China remained till at least 2015.<ref name=":7" />
Tibetan officials continued to administer ] and refused to concede territory during negotiations in 1938.<ref name = "Calvin"/> The governor of Assam asserted that Tawang was "undoubtedly British" but noted that it was "controlled by Tibet, and none of its inhabitants have any idea that they are not Tibetan."<ref name = "Calvin"/> During World War II, with India's east threatened by Japanese troops and with the threat of Chinese expansionism, British troops secured Tawang for extra defence.<ref name="Calvin"/>


=== Linking border and other bilateral relations ===
China's claim on areas south of the McMahon Line, encompassed in the NEFA, were based on the traditional boundaries.<ref name="VKSingh"> resolving the boundary dispute</ref> India believes that the boundaries China proposed in ] and ] have no written basis and no documentation of acceptance by anyone apart from China.<ref name="VKSingh"/> Indians argue that China claims the territory on the basis that it was under Chinese imperial control in the past,<ref name="VKSingh"/> while Chinese argue that India claims the territory on the basis that it was under British imperial control in the past.<ref>"The Place of International Law in Chinese Strategy and Tactics: The Case of the Sino-Indian Boundary Dispute", by Arthur A. Stahnke. The Journal of Asian Studies. Vol. 30, No. 1, Nov 1970. pg. 95–119</ref> The last ] emperor's 1912 edict of abdication authorised its succeeding ] to form a union of "five peoples, namely, ], ], ], ], and ] ''together with their territory in its integrity''"<ref>Qing Dynasty Edict of Abdication, translated by ], ''The Fight for the Republic in China'', London: Hurst & Blackett, Ltd. Paternoster House, E.C. 1918. – Emphasis added, "Muslims" rendered as "Mohammedans" in original translation</ref> However, V.K. Singh cites the presence of the ] and ] in regions India does not place a claim to but which were heavily influenced by Indian culture.<ref name="VKSingh"/>
During the first round of renewed talks between China and India in December 1981, China suggested maintaining the status quo on the border question, and in the meantime other relations could be normalized.{{Sfnp|Ganguly|1989|p=1126}} By the fourth round in October 1983 the Indian negotiators agreed to normalization in other areas.{{Sfnp|Ganguly|1989|pp=1127–1128}} This aspect of linking or de-linking border relations resurfaced in the ].<ref>{{Cite web|last=|date=5 August 2020|title=Keep border dispute & bilateral ties separate, China tells India|url=https://timesofindia.indiatimes.com/india/keep-border-dispute-bilateral-ties-separate-china-tells-india/articleshow/77362414.cms|access-date=2021-03-06|website=The Times of India|archive-date=28 September 2020|archive-url=https://web.archive.org/web/20200928183434/https://timesofindia.indiatimes.com/india/keep-border-dispute-bilateral-ties-separate-china-tells-india/articleshow/77362414.cms|url-status=live}}</ref>


=== Legal positions ===
India's claim line in the eastern sector follows the McMahon Line. The line drawn by McMahon on the ] clearly starts at 27°45’40"N, a trijunction between Bhutan, China, and India, and from there, extends eastwards.<ref name="Neville_Maxwell"/> Most of the fighting in the eastern sector before the start of the war would take place immediately north of this line.<ref name="Calvin"/><ref name ="Noorani2">A.G. Noorani, "". ''India's National Magazine'', 29 August 2003.</ref> However, India claimed that the ''intent'' of the treaty was to follow the main watershed ridge divide of the Himalayas based on memos from McMahon and the fact that over 90% of the McMahon Line does in fact follow the main watershed ridge divide of the Himalayas. They claimed that territory south of the high ridges here near Bhutan (as elsewhere along most of the McMahon Line) should be Indian territory and north of the high ridges should be Chinese territory. In the Indian claim, the two armies would be separated from each other by the highest mountains in the world.
In the 1980s, during the beginning of talks between the two countries, India made it clear that it would not discuss the legal position of either side as it had already been documented in the 1960 Official's report.{{Sfnp|Ganguly|1989|p=1127}}


=== Political initiatives ===
During and after the 1950s, when India began patrolling this area and mapping in greater detail, they confirmed what the 1914 Simla agreement map depicted: six river crossings that interrupted the main Himalayan watershed ridge. At the westernmost location near Bhutan north of Tawang, they modified their maps to extend their claim line northwards to include features such as Thag La ridge, Longju, and Khinzemane as Indian territory.<ref name="Neville_Maxwell"/> Thus, the Indian version of the McMahon Line moves the Bhutan-China-India trijunction north to 27°51’30"N.<ref name="Neville_Maxwell"/> India would claim that the treaty map ran along features such as Thag La ridge, though the actual treaty map itself is topographically vague (as the treaty was not accompanied with demarcation) in places, shows a straight line (not a watershed ridge) near Bhutan and near Thag La, and the treaty includes no verbal description of geographic features nor description of the highest ridges.<ref name="Neville_Maxwell"/><ref>, T. S. Murty, Neville Maxwell. The China Quarterly, No. 46. (Apr. – Jun. 1971), pp. 357–362.</ref>
During the eighth round of talks in November, 1987, in the background of the Sumdorong Chu standoff, the negotiators on both sides came to a conclusion that apart from these bureaucratic level talks, a political move was needed.{{Sfnp|Ganguly|1989|p=1131}}


==Dispute management and resolution mechanism ==
==Sikkim==
Indian spokesperson for the Ministry of External Affairs stated in May 2020 that there were enough bilateral mechanisms to solve border disputes diplomatically.<ref name=":4">{{Cite news|last=Gill|first=Prabhjote|date=29 May 2020|title=India says there are five treaties to push the Chinese army behind the Line of Actual Control⁠ – while experts tell Modi to remain cautious|work=]|url=https://www.businessinsider.in/defense/news/five-treaties-to-address-india-china-border-issue-experts-warn-modi-to-remain-cautious/articleshow/76085340.cms|access-date=3 June 2020|archive-date=4 June 2020|archive-url=https://web.archive.org/web/20200604075816/https://www.businessinsider.in/defense/news/five-treaties-to-address-india-china-border-issue-experts-warn-modi-to-remain-cautious/articleshow/76085340.cms|url-status=live}}</ref><ref name=":6">{{Cite news|last=Chaudhury|first=Dipanjan Roy|date=29 May 2020|title=India-China activate 5 pacts to defuse LAC tensions|work=The Economic Times|url=https://economictimes.indiatimes.com/news/defence/india-china-activates-5-pacts-to-defuse-lac-tensions/articleshow/76083868.cms|access-date=3 June 2020|archive-date=29 May 2020|archive-url=https://web.archive.org/web/20200529192830/https://economictimes.indiatimes.com/news/defence/india-china-activates-5-pacts-to-defuse-lac-tensions/articleshow/76083868.cms|url-status=live}}</ref><ref>{{cite web|date=11 April 2005|title=Agreement between the Government of the Republic of India and the Government of the People's Republic of China on the Political Parameters and Guiding Principles for the Settlement of the India-China Boundary Question|url=https://mea.gov.in/bilateral-documents.htm?dtl/6534/|access-date=20 June 2020|website=Ministry of External Affairs, Government of India|archive-date=3 July 2020|archive-url=https://web.archive.org/web/20200703011309/https://mea.gov.in/bilateral-documents.htm?dtl/6534/|url-status=live}}</ref><ref>{{cite report|url=http://164.100.47.193/lsscommittee/External%20Affairs/16_External_Affairs_22.pdf|title=Sino-India relations including Doklam, Situation and Cooperation in International Organizations (2017-18)|publisher=Ministry of External Affairs, Government of India|access-date=31 July 2020|archive-date=26 January 2021|archive-url=https://web.archive.org/web/20210126032852/http://164.100.47.193/lsscommittee/External%20Affairs/16_External_Affairs_22.pdf|url-status=live}}</ref> However, some critics say that these agreements are "deeply flawed".<ref>{{Cite news|last=Sudarshan|first=V.|date=1 June 2020|title=A phantom called the Line of Actual Control|work=]|url=https://www.thehindu.com/opinion/op-ed/a-phantom-called-the-line-of-actual-control/article31717488.ece|access-date=3 June 2020|issn=0971-751X|archive-date=3 June 2020|archive-url=https://web.archive.org/web/20200603120445/https://www.thehindu.com/opinion/op-ed/a-phantom-called-the-line-of-actual-control/article31717488.ece|url-status=live}}</ref>
India's annexation of ] in 1975 was rejected by China at the time. The Sino-Indian Memorandum of 2003 was hailed as a ''de facto'' Chinese acceptance of the annexation.<ref name="Rajan">D. S. Rajan, "", South Asia Analysis Group, 10-June-2008.</ref> China published a map showing Sikkim as a part of India and the Foreign Ministry deleted it from the list of China's "countries and regions".<ref name="Rajan"/> However, the Sikkim-China border's northernmost point, "The Finger", continues to be the subject of dispute and military activity.<ref name="Sudha"/>

=== Bilateral mechanisms ===
Bodies/mechanisms have been formed as per bilateral agreements to consult on the boundary question:
{| class="wikitable"
! rowspan="2" width="25%" |Dispute resolution mechanism name
! rowspan="2" |Abbr.
! rowspan="2" |Date<br/>proposed
! colspan="2" width="35%" |Formed on/via
! rowspan="2" |First round
! rowspan="2" |Last round
! rowspan="2" |Total<br/>rounds
! rowspan="2" |Status
|-
! width="10%" |Date
! width="25%" |Statement/Agreement
|-
|]
|JWG
| -
|1988<ref name=":0" />
|Joint Press Communique
|30 June-4 July 1989{{Sfnp|Westcott|2017|p=314}}
| -
| -
| -
|-
|India-China Diplomatic and Military Expert Group
|EG
| -
|7 September 1993<ref name=":0" />
|Border Peace and Tranquility Agreement
|2-4 February 1994{{Sfnp|Sali|1998|p=126}}
| -
| -
| -
|-
|]
|SR/SRM
|1979
|23 June 2003<ref name=":1" />
|Declaration on Principles for Relations and Comprehensive Cooperation
|26 October 2003{{Sfnp|Westcott|2017|p=316}}
|21 December 2019<ref>{{Cite web|title=22nd Meeting of Special Representatives of China and India Held in New Delhi (21 December 2019)|url=https://www.fmprc.gov.cn/mfa_eng/zxxx_662805/t1726791.shtml|access-date=2021-03-01|website=www.fmprc.gov.cn|archive-date=4 March 2021|archive-url=https://web.archive.org/web/20210304140231/https://www.fmprc.gov.cn/mfa_eng/zxxx_662805/t1726791.shtml|url-status=live}}</ref>
|22
|Functional
|-
|]
|WMCC
|2010
|17 January 2012<ref name=":5" />
|Agreement on the Establishment of a Working Mechanism for Consultation and Coordination
|6 March 2012{{Sfnp|Kumar|2014|p=86}}
|18 December 2020<ref>{{Cite web|title=20th meeting of Working Mechanism for Consultation and Coordination on India-China Border Affairs (December 18, 2020)|url=https://www.mea.gov.in/press-releases.htm?dtl/33314/20th+meeting+of+Working+Mechanism+for+Consultation+amp+Coordination+on+IndiaChina+Border+Affairs|access-date=2021-03-01|website=www.mea.gov.in|archive-date=25 February 2021|archive-url=https://web.archive.org/web/20210225102927/https://mea.gov.in/press-releases.htm?dtl/33314/20th+meeting+of+Working+Mechanism+for+Consultation+amp+Coordination+on+IndiaChina+Border+Affairs|url-status=live}}</ref>
|20
|Functional
|-
| colspan="9" |Other: ]s, Hotlines (6 hotlines as of July 2021),<ref name=":8">{{Cite web|last=Pandit|first=Rajat|date=1 August 2021|title=India, China establish sixth hotline between ground commanders along LAC|url=https://timesofindia.indiatimes.com/india/india-china-establish-sixth-hotline-between-ground-commanders-along-lac/articleshow/84947628.cms|access-date=2021-08-02|website=The Times of India|archive-date=1 August 2021|archive-url=https://web.archive.org/web/20210801145524/http://timesofindia.indiatimes.com/india/india-china-establish-sixth-hotline-between-ground-commanders-along-lac/articleshow/84947628.cms|url-status=live}}</ref> normal diplomatic channels
|}
Following the 1962 boundary war, official border talks started in December 1981.{{Sfnp|Westcott|2017|p=314}} There were eight rounds of these talks, with the eight round being in 1987.{{Sfnp|Westcott|2017|p=314}} In 1988, through a joint press communique, the border talks were formalized as the 'India-China Joint Working Group on the Boundary Question' (JWG). The JWG met 15 times, the final meeting being in 2005. In 2003 the Special Representatives Mechanism (SRM) was set up as per the 'Declaration on Principles for Relations and Comprehensive Cooperation'.<ref name=":0">{{Cite book|last=Shankar|first=Mahesh|url=https://books.google.com/books?id=3_t0DwAAQBAJ|title=The China-India Rivalry in the Globalization Era|date=2018-09-03|publisher=Georgetown University Press|isbn=978-1-62616-600-4|editor-last=Paul|editor-first=T. V.|pages=40–41|chapter=2: Territory and the China-India Competition|access-date=19 March 2021|archive-date=13 August 2024|archive-url=https://web.archive.org/web/20240813235327/https://books.google.com/books?id=3_t0DwAAQBAJ|url-status=live}}</ref>

In April 2005 another agreement mentioned that the JWG, the "India-China Diplomatic and Military Expert Group", and the "Special Representatives on the boundary question" would carry on with their work and consultations.<ref name=":1" /> Other than agreements directly related to the border, there have been numerous agreements that worked on other aspects of the bilateral relations such as a memorandum of understanding on military relations that was signed in 2006, that in turn affected the border situation.<ref>{{Cite journal|last=Das|first=Rup Narayan|date=October 2010|title=India-China Defence Cooperation and Military Engagement|url=https://idsa.in/system/files/jds_4_4_rndas.pdf|journal=Journal of Defence Studies|volume=4|issue=4|pages=117|access-date=4 March 2021|archive-date=5 July 2021|archive-url=https://web.archive.org/web/20210705203217/https://idsa.in/system/files/jds_4_4_rndas.pdf|url-status=live}}</ref><ref>{{Cite web|date=11 April 2005|title=Joint Statement of the Republic of India and the People's Republic of China|url=https://www.mea.gov.in/bilateral-documents.htm?dtl/6577/Joint_Statement_of_the_Republic_of_India_and_the_Peoples_Republic_of_China|access-date=2021-03-04|website=Ministry of External Affairs, Government of India|archive-date=6 December 2022|archive-url=https://web.archive.org/web/20221206073812/https://www.mea.gov.in/bilateral-documents.htm?dtl/6577/Joint_Statement_of_the_Republic_of_India_and_the_Peoples_Republic_of_China|url-status=live}}</ref>

=== Bilateral agreements ===
{{Tree list}}
* India China border related agreements
** 1988: ]
** Trade
*** 1991: Memorandum on the Resumption of Border Trade
*** 1992: Protocol on Entry and Exit Procedures for Border Trade
*** 2003: Memorandum on Expanding Border Trade
** Confidence building measures
*** 1993: ]
*** 1996: Agreement on Military Confidence Building Measures
*** 2005: Protocol for the Implementation of Military Confidence Building Measures
** Political measures
*** 2003: Declaration on Principles for Relations and Comprehensive Cooperation
*** 2005: ]
** 2012: Agreement on the Establishment of a ]
** 2013: ]
** 2020: 5 point statement
{{Tree list/end}}

=== Bilateral military communication channels ===

====Border meeting points====
{{OSM Location map
|float =
|width= 400
| coord = {{coord|33.0|84.0}}
| mark-coord = {{coord|33.556 |78.722 }} |label =Chushul |label-pos = right
| mark-coord1 = {{coord|27.386844 |88.831142}} |label1=Nathu La |label-pos1 = left
| mark-coord2 = {{coord|27.7233 |91.8916}} |label2=Bum La |label-pos2 = top
| mark-coord3 = {{coord|28.284167 |97.015556}} |label3=Kibithu |label-pos3 = left
| mark-coord4 = {{coord|35.39 |77.925 }} |label4=Daulet Beg Oldi|label-pos4 = right
| mark-coord5 = {{coord|30.23408 |81.028805}} |label5=Lipulekh Pass |label-pos5 = right | mark5 = Blue pog.svg | label-color5 = blue
| mark-coord6 = {{coord|31.354035 |79.212855}} |label6=proposed |label-pos6 = right | mark6 = Blue pog.svg | label-color6 = blue
| zoom = 4 <!--(1=whole world, 18=a street)-->
| caption = '''Border Personnel Meeting points'''<br>(existing in red, proposed/discussed in blue)
}}
There are five ]s (BPM) for holding rounds of dispute resolution talks among the military personnel with a defined escalation path, such as first between colonels, then between brigadiers, and finally between major generals.<ref name=":12">{{Cite news|last=Mitra|first=Devirupa|date=6 June 2020|title=Ahead of Border Talks With China, India Still Unclear of Reason Behind Troops Stand-Off|url=https://thewire.in/external-affairs/exclusive-india-china-ladakh-border-dialogue|access-date=6 June 2020|work=]|quote=On Saturday, Indian and Chinese military officials of Lieutenant General-rank are likely to meet at a border personnel meeting (BPM)... The various BPM meetings – led first by colonels, then brigadiers and then finally over three rounds by major general-rank officers – have until now yielded no results.|archive-date=6 June 2020|archive-url=https://web.archive.org/web/20200606082915/https://thewire.in/external-affairs/exclusive-india-china-ladakh-border-dialogue|url-status=dead}}</ref><ref>{{Cite news|last=Gupta|first=Shishir|date=5 June 2020|title=Ahead of today's meet over Ladakh standoff, India signals a realistic approach|url=https://www.hindustantimes.com/india-news/ahead-of-talks-with-china-over-ladakh-standoff-india-signals-a-realistic-approach/story-yhfSaZk0vucG6f1vPKZHrK.html|access-date=6 June 2020|work=]|archive-date=5 June 2020|archive-url=https://web.archive.org/web/20200605154355/https://www.hindustantimes.com/india-news/ahead-of-talks-with-china-over-ladakh-standoff-india-signals-a-realistic-approach/story-yhfSaZk0vucG6f1vPKZHrK.html|url-status=live}}</ref> Of these five BPM, two are in the Indian ] of ] or India's western (northern) sector corresponding to China's Southern Xinxiang Military District, one in ] and two in ] in India's central and eastern sectors corresponding to China's Tibet Military District.

==== Hotlines ====
Negotiations for an inter-military hotline started in 2012. It was initially planned for communication between India's ] and PLA's ]. Negotiations for Director General of Military Operations (DGMOs) level hotline continued in 2013. In 2014 a hotline was set up between the DGMOs of both countries.<ref>{{Cite book|last1=Mukherjee|first1=Anit|url=https://books.google.com/books?id=mQQBCwAAQBAJ|title=India's Naval Strategy and Asian Security|last2=Mohan|first2=C. Raja|date=2015-11-19|publisher=Routledge|isbn=978-1-317-36134-3|pages=163|access-date=24 July 2021|archive-date=13 August 2024|archive-url=https://web.archive.org/web/20240813235327/https://books.google.com/books?id=mQQBCwAAQBAJ|url-status=live}}</ref> In 2021 both countries agreed to set up a hotline between their foreign ministers.<ref>{{Cite web|last=|first=|date=26 February 2021|title=India, China agree to set up hotline for sorting out issues|url=https://www.tribuneindia.com/news/nation/india-china-agree-to-set-up-hotline-for-sorting-out-issues-218002|access-date=2021-07-02|website=Tribune India|archive-date=9 July 2021|archive-url=https://web.archive.org/web/20210709183455/https://www.tribuneindia.com/news/nation/india-china-agree-to-set-up-hotline-for-sorting-out-issues-218002|url-status=live}}</ref> By 31 July 2021, six hotlines had been set up between commanders; 2 in Ladakh, 2 in Sikkim and 2 in Arunachal Pradesh.<ref name=":8" />

==== Corps Commander Level Meetings ====
'Corps Commander Level Meetings' during the ] allowed both sides to exchange perspectives and was seen as an important way to keep communication open.<ref>{{Cite web|date=10 April 2021|title=11th Round of India-China Corps Commander Level Meeting|url=https://www.mea.gov.in/press-releases.htm?dtl/33792/11th_Round_of_IndiaChina_Corps_Commander_Level_Meeting|access-date=2021-08-02|website=www.mea.gov.in|publisher=Ministry of External Affairs, Government of India|quote=The two sides had a detailed exchange of views for the resolution of the remaining issues...|archive-date=24 July 2021|archive-url=https://web.archive.org/web/20210724013659/https://mea.gov.in/press-releases.htm?dtl/33792/11th_Round_of_IndiaChina_Corps_Commander_Level_Meeting|url-status=live}}</ref><ref>{{Cite journal|last=Liu|first=Xuecheng|date=June 2021|title=Putting the Border Dispute in Historical Context|url=https://www.airuniversity.af.edu/Portals/10/JIPA/IndoPacificPerspectives/June%202021/IPP%20June%202021.pdf|journal=The Air Force Journal of Indo-Pacific Affairs: Indo-Pacific Perspectives|quote=...mechanisms such as the China-India Corps Commander Level Meeting, which has played an important role in facilitating communication between the two sides.|via=Air University (United States Air Force)|access-date=2 August 2021|archive-date=2 August 2021|archive-url=https://web.archive.org/web/20210802122547/https://www.airuniversity.af.edu/Portals/10/JIPA/IndoPacificPerspectives/June%202021/IPP%20June%202021.pdf|url-status=live}}</ref> The length of these meetings varied from 9 hours<ref>{{Cite web|last=Negi|first=Manjeet|date=31 July 2021|title=Ladakh standoff: India, China end 12th Corps Commander-level talks after 9 hours|url=https://www.indiatoday.in/india/story/ladakh-conflict-india-china-end-12th-corps-commander-level-talks-1835201-2021-07-31|access-date=2021-08-02|website=India Today|archive-date=31 July 2021|archive-url=https://web.archive.org/web/20210731150533/https://www.indiatoday.in/india/story/ladakh-conflict-india-china-end-12th-corps-commander-level-talks-1835201-2021-07-31|url-status=live}}</ref> to over 12 hours.<ref>{{Cite web|agency=PTI|date=21 September 2020|title=Army commanders of India, China hold over 12-hour-long talks to ease Ladakh standoff|url=https://timesofindia.indiatimes.com/india/army-commanders-of-india-china-hold-over-12-hour-long-talks-to-ease-ladakh-standoff/articleshow/78240398.cms|access-date=2021-08-02|website=The Times of India|archive-date=2 August 2021|archive-url=https://web.archive.org/web/20210802122545/https://timesofindia.indiatimes.com/india/army-commanders-of-india-china-hold-over-12-hour-long-talks-to-ease-ladakh-standoff/articleshow/78240398.cms|url-status=live}}</ref> Apart from the military, the chief of the ] and a Ministry of External Affairs representative were also present.<ref>{{Cite news|last1=Philip|first1=Snehesh Alex|last2=Basu|first2=Nayanima|date=22 September 2020|title=India and China stick to demands, current ground positions in Ladakh could become status quo|work=ThePrint|url=https://theprint.in/defence/india-and-china-stick-to-demands-current-ground-positions-in-ladakh-could-become-status-quo/508449/|access-date=2 August 2021|archive-date=23 September 2020|archive-url=https://web.archive.org/web/20200923020024/https://theprint.in/defence/india-and-china-stick-to-demands-current-ground-positions-in-ladakh-could-become-status-quo/508449/|url-status=live}}</ref><ref>{{Cite news|last=ANI|date=2020-09-21|title=India, China to hold sixth Corps Commander-level talks today: Report|work=Business Standard India|url=https://www.business-standard.com/article/current-affairs/india-china-to-hold-sixth-corps-commander-level-talks-today-report-120092100190_1.html|access-date=2021-08-02|archive-date=26 September 2020|archive-url=https://web.archive.org/web/20200926061122/https://www.business-standard.com/article/current-affairs/india-china-to-hold-sixth-corps-commander-level-talks-today-report-120092100190_1.html|url-status=live}}</ref>

In October 2024, India announced that it had reached an agreement over patrolling arrangements along the Line of Actual Control (LAC) in the border area, which would lead to disengagement and resolution of the long-running conflict that began in 2020.<ref>{{Cite web |last=Sen |first=Amiti |date=2024-10-21 |title=LAC breakthrough: India, China agree on patrolling arrangements in border area |url=https://www.thehindubusinessline.com/news/national/lac-breakthrough-india-china-agree-on-patrolling-arrangements-in-border-area/article68779840.ece |access-date=2024-10-22 |website=BusinessLine |language=en}}</ref>

India and China started implementing an agreement to end a military standoff along their disputed Himalayan border. This marks a significant diplomatic development between the two countries since deadly clashes occurred between their armies four years ago. Both sides have agreed on phased disengagement steps aimed at reducing tensions along the Line of Actual Control (LAC), where troops have been deployed in close proximity.<ref>https://www.reuters.com/world/asia-pacific/india-china-start-pulling-back-troops-border-face-off-points-source-says-2024-10-25/</ref>

==Geostrategic military aspects ==

===Commands and troops deployment ===
{{anchor | Command | Sectors }}
{{see also | List of Indian Air Force stations | l1= Indian Airbases | List of People's Liberation Army Air Force airbases | l2= Chinese Airbases | :Category:Indian Army bases | l3= Indian Army bases | Western Theater Command | l4= China's bases along LAC | Patrol Point }}
] of China, area under integrated command.]]
{{multiple image |total_width=400 |direction=horizontal
|image1=Xinjiang prfc map2alt.png |caption1=Map of ] with disputed areas claimed by China shown in blue.
|image2=Xizang prfc map.png |caption2=Map of ] with disputed areas claimed by China shown in blue.
}}
] has an integrated ] (WTC) across the whole LAC with India. Western Theater Command also covers provinces of Sichuan, Gansu, Ningxia, Qinghai and Chongqing. China has 5 integrated theater commands.<ref name=lac1>{{Cite web |url = http://tibet.net/2016/05/eye-on-india-china-raises-tibet-military-command-rank/ |title = Eye on India, China raises Tibet military command rank {{!}} Central Tibetan Administration |website = tibet.net |access-date = 1 October 2016 |archive-date = 7 November 2016 |archive-url = https://web.archive.org/web/20161107071553/http://tibet.net/2016/05/eye-on-india-china-raises-tibet-military-command-rank/ |url-status = dead }}</ref>

] has divided the LAC into 3 sectors - the ''northern sector'' (some times also called ''western sector'') across ] and the Chinese-held Aksai Chin, the ''central sector'' across ] and ] states, and the ''eastern sector'' across ] and Arunachal Pradesh states.<ref name=euro1> {{Webarchive|url=https://web.archive.org/web/20200727042837/https://eurasiantimes.com/india-china-war-us-reports-explains-why-india-needs-to-use-its-air-force-to-incapacitate-china/ |date=27 July 2020 }}, Eurasian Times, 24 July 2020.</ref><ref name=lac2>{{Cite web |url = https://www.lowyinstitute.org/the-interpreter/twisting-india-s-chicken-s-neck |title = Twisting India's Chicken's Neck |website = lowyinstitute.org |access-date = 18 July 2020 |archive-date = 18 July 2020 |archive-url = https://web.archive.org/web/20200718130100/https://www.lowyinstitute.org/the-interpreter/twisting-india-s-chicken-s-neck |url-status = live }}</ref> Similarly, ] has ]-based ], ]-based ], and ]-based ] to cover the LAC.<ref name=euro1/> India, whose sole integrated command is ], is still going through ] of its various geography and services based commands as of 2020.<ref name=int1> {{Webarchive|url=https://web.archive.org/web/20210114053721/https://theprint.in/defence/indian-armys-new-integrated-battle-groups-to-be-introduced-in-early-2020/326253/ |date=14 January 2021 }}, ], 26 November 2019.</ref><ref name=int2> {{Webarchive|url=https://web.archive.org/web/20200807091734/https://www.drishtiias.com/daily-updates/daily- |date=7 August 2020 }}, ], 4 May 2019.</ref>

The ] (BCSIA) carried out an independent analysis of troops deployment in 2020. Indian Army strike forces have 225,000 soldiers near its border, all of whom are focused on China. Numbers include 34,000 in the Northern Command, 15,500 in the Central Command, and 175,500 troops in the Eastern Command, including 3,000 soldiers of ] tank brigade in Ladakh and 1,000 soldiers of ] regiment in Arunachal Pradesh. Of the 200,000 to 230,000 ground forces under China's Western Theater Command, only 110,000 are stationed on its border, while the rest are deployed on China's border with Russia in the North, inside Tibet and Xinjiang, or deployed elsewhere inside Western China. Of the Chinese troops stationed on the India border, mainly belonging to the ] and ], 70,000 are deployed in ] (corresponding to India's northern or western sector in Ladakh), and 40,000 are deployed in ] (corresponding to India's central and eastern sector along with the rest of the LAC from Himachal Pradesh to Arunachal Pradesh). The remaining forces would be not be available for deployment to the India border in the case of a wider conflict. This creates a disparity in terms of India's larger number of conventional troops (225,000) focused on the China border, compared to the smaller number of Chinese troops (90,000-120,000) focused on the Indian border, the majority of whom are deployed far from the Indian border while Indian troops are deployed closer. In the case of conflict, while Indian troops are already in position on or near the border, China will have to mobilise troops mainly from Xinjiang and from other Western Theater Command troops inside China's interior.<ref name=euro1/>

Command deployment is as follows:<ref name=lac2/>

{| class="wikitable sortable" width="auto" style="text-align: center"
! colspan=2 | India
! rowspan=2 | China
|-
! Indian Army Sector / Commands
! Indian Airforce
|-
| Northern (also called "Western")<ref name=euro1/> <br>(Ladakh)
| ] <br>(Delhi)
| rowspan=3 | ] <br>(Xinjiang and Tibet)
|-
| Central <br>(Himachal Pradesh and Uttrakhand)
| ] <br>(Prayagraj)
|-
| Eastern <br>(Sikkim and Arunachal Pradesh)
| ] <br>(Shillong)
|-
|}

=== Village construction ===
In 2024, '']'' reported that, according to ], China had constructed villages along and inside of disputed territory within Arunachal Pradesh.<ref name=":02">{{Cite news |last1=Xiao |first1=Muyi |last2=Chang |first2=Agnes |date=2024-08-10 |title=China's Great Wall of Villages |url=https://www.nytimes.com/interactive/2024/08/10/world/asia/china-border-villages.html |access-date=2024-08-10 |work=] |language=en-US |issn=0362-4331 |archive-date=10 August 2024 |archive-url=https://web.archive.org/web/20240810234238/https://www.nytimes.com/interactive/2024/08/10/world/asia/china-border-villages.html |url-status=live }}</ref> Chinese individuals, called "border guardians," received annual subsidies to relocate to newly built villages and paid to conduct border patrols.<ref name=":02" />

==List of disputed areas==
{{anchor | Summary | Disputed | Disputed areas }}
List of disputed areas,<ref name=lac2/> each with several hundred to several thousand km<sup>2</sup> area, is as follows:
{{OSM Location map
| float = right
| height= 350
| width= 420
| zoom = 6 <!--(1=whole world, 18=a street)-->
| nolabels = 1
| caption = Red dots represent ] sensitive and disputed locations on the ] (LAC) such as ], area of ], north of ], north and south ], ], opposite ], ], ], ], ].<ref name=":LocationsViaIndianExpress">{{cite news |last1=Singh |first1=Sushant |title=De-escalation process underway: 2 LAC flashpoints are not in list of identified areas still contested |url=https://indianexpress.com/article/india/india-china-ladakh-border-lac-galwan-6441494/ |access-date=8 November 2020 |work=The Indian Express |date=4 June 2020 |archive-date=7 November 2020 |archive-url=https://web.archive.org/web/20201107141448/https://indianexpress.com/article/india/india-china-ladakh-border-lac-galwan-6441494/ |url-status=live }}</ref><ref name=":LocationsViaET">{{cite news |last1=Gurung |first1=Shaurya Karanbir |title=Indian Army focussing on locations along LAC where Doklam-like flashpoints could happen |url=https://economictimes.indiatimes.com/news/defence/indian-army-focussing-on-locations-along-lac-where-doklam-like-flashpoints-could-happen/articleshow/62593521.cms |access-date=8 November 2020 |work=Economic Times |date=21 January 2018 |archive-date=26 July 2020 |archive-url=https://web.archive.org/web/20200726085222/https://economictimes.indiatimes.com/news/defence/indian-army-focussing-on-locations-along-lac-where-doklam-like-flashpoints-could-happen/articleshow/62593521.cms |url-status=live }}</ref>
| coord = {{coord|33.193|78.882}}
| mark-coord = {{coord|35.4444|78.0300}} |label =North Samar Lungpa |label-pos = left | mark-size = 8| mark = Red pog.svg | mark-title = North of Samar Lungpa | mark-description= | label-size = 10 |label-angle=

| mark-coord1 = {{coord|34.3352449| 79.0357722}}| caption1 = Area of Kongka La|label1=Area of Kongka La|label-pos1 = right | mark-size1 = 8 | mark-title1 = Area of Kongka La | mark-description1= | label-size1 =10

| mark-coord2 = {{coord|34.3780|78.8463}}| caption2 =North of Kugrang River|label2=North of Kugrang River |label-pos2 = left | mark-size2 = 8| mark2 = Red pog.svg | mark-title2 = North of Kugrang River | mark-description2= | label-size2 = 10

| mark-coord3 = {{coord|33.7049|78.7435}}| caption3 =North and South Pangong Tso |label3=N&S Pangong Tso |label-pos3 =left| mark-size3 = 8| mark3 = Red pog.svg | mark-title3 = North and South Pangong Tso | mark-description3= | label-size3 = 10

| mark-coord4 = {{coord|33.5537700| 78.7400436}}| caption4 = Spanggur Gap|label4=Spanggur Gap |label-pos4 = right | mark-size4 = 8| mark4 = Red pog.svg | mark-title4 = Spanggur Gap | mark-description4= | label-size4 = 10

| mark-coord5 = {{coord|33.3203848| 79.0269091 }}| caption5 =East of Mt Sajum |label5= East of Mt Sajum |label-pos5 = left | mark-size5 = 8| mark5 = Red pog.svg | mark-title5 = Mt Sajum | mark-description5=East of Mt Sajum opposite Dumchele | label-size5 = 10

| mark-coord6 = {{coord|33.0761915| 79.1687747}}| caption6 = opposite Dumchele|label6=opposite Dumchele |label-pos6 = right | mark-size6 = 8| mark6 = Red pog.svg | label-color6 = | mark-title6 = Dumchele | mark-description6=East of Mt Sajum opposite Dumchele| label-size6 = 10

| mark-coord7 = {{coord|32.6453217| 78.5924985}}| caption7 = Chumar|label7=Chumar |label-pos7 = left | mark-size7 = 8| mark7 = Red pog.svg | label-color7 = | mark-title7 = Chumar | mark-description7=| label-size7 = 10

| mark-coord8 = {{coord|32.7040811| 79.4467432}}| caption8 =Demchok |label8=Demchok |label-pos8 = right | mark-size8 = 8| mark8 = Red pog.svg | label-color8 =| mark-title8 = Demchok| mark-description8=| label-size8 = 10

| mark-coord9 = {{coord|35.1648| 78.0606}}| caption9 = Trig Heights |label9= Trig Heights |label-pos9 = right | mark-size9 = 8| mark9 = Red pog.svg | label-color9 = | mark-title9= Trig Heights| mark-description9=| label-size9 = 10|label-angle9=

| mark-coord10 = {{coord|34.533333| 78.433333}}| caption10 =East of Point 6556 |label10= East of Point 6556 |label-pos10 = left | mark-size10 = 8| mark10 = Red pog.svg | label-color10 = | mark-title10= East of Point 6556| mark-description10=| label-size10 = 10

| mark-coord14 = {{coord|30.8333|79.9667}}| caption14 =Barahoti |label14= Barahoti |label-pos14 = right | mark-size14 = 8| mark14 = Red pog.svg | label-color14 = | mark-title14= Barahoti| mark-description14=| label-size14 = 10

| mark-coord15 = {{coord|31.8401|78.69669}}| caption15 =Tashigang |label15= Tashigang |label-pos15 = right | mark-size15 = 8| mark15 = Red pog.svg | label-color15 = | mark-title15= Tashigang| mark-description15=| label-size15 = 10

| mark-coord16 = {{coord|32.096|78.673}}| caption16 =Kaurik |label16= Kaurik |label-pos16 = right | mark-size16 = 8| mark16 = Red pog.svg | label-color16 = | mark-title16= Kaurik| mark-description16=| label-size16 = 10
}}
{{OSM Location map
| float = right
| height= 280
| width= 420
| zoom = 6 <!--(1=whole world, 18=a street)-->
| nolabels = 1
| caption = Red dots represent ] sensitive and disputed locations on the ] (LAC).<ref name=":LocationsViaIndianExpress" /><ref name=":LocationsViaET" /> Yellow dots ] represent select Chinese claims in Bhutan and tri-junction areas related to the Sino-India border dispute.<ref>{{cite web |last1=Joshua |first1=Anita |title=Beijing now bullies Bhutan |url=https://www.telegraphindia.com/world/beijing-now-bullies-bhutan/cid/1785446 |website=The Telegraph |location=Kolkata |accessdate=12 July 2020 |archive-date=5 December 2020 |archive-url=https://web.archive.org/web/20201205111457/https://www.telegraphindia.com/world/beijing-now-bullies-bhutan/cid/1785446 |url-status=live }}</ref>
Locations include ], ], ], ], ], ], ], ].
| coord = {{coord|28.053|92.988}}

| mark-coord11 = {{coord|28.43|93.17}}| caption11 =Asaphila |label11= Asaphila |label-pos11 = left | mark-size11 = 8| mark11 = Red pog.svg | label-color11 = | mark-title11= Asaphila| mark-description11=| label-size11 = 10

| mark-coord12 = {{coord|27.3|88.933333}}| caption12 =Doklam |label12= Doklam |label-pos12 = right | mark-size12 = 8| mark12 = Yellow pog.svg | label-color12 = | mark-title12= Doklam| mark-description12=| label-size12 = 10

| mark-coord13 = {{coord|28.6404|93.3817}}| caption13 =Longju |label13= Longju |label-pos13 = left| mark-size13 = 8| mark13 = Red pog.svg | label-color13 = | mark-title13= Longju| mark-description13=| label-size13 = 10|label-offset-y13=-3

| mark-coord17 = {{coord|27.588333|91.865278}}| caption17 =Tawang (?) |label17= Tawang |label-pos17 = right | mark-size17 = 8| mark17 = Red pog.svg | label-color17 = | mark-title17= Tawang(?)| mark-description17=| label-size17 = 10|label-offset-y17=2

| mark-coord18 = {{coord|27.7818|91.7813}}| caption18 =Sumdorong Chu |label18= Sumdorong Chu |label-pos18 = right | mark-size18 = 8| mark18 = Red pog.svg | label-color18 = | mark-title18= Sumdorong Chu | mark-description18=| label-size18 = 10|label-offset-y18=-2

| mark-coord20= {{coord|28.2077998|97.2838434}}| caption20 =Dichu area |label20= Dichu area |label-pos20 = left | mark-size20 = 8| mark20 = Red pog.svg | label-color20 = | mark-title20= Dichu area | mark-description20=| label-size20 = 10

| mark-coord21= {{coord|29.0628031|96.1671497}}| caption21 =Fish-Tail -I |label21= Fish-Tail -I |label-pos21 =left | mark-size21 = 8| mark21 = Red pog.svg | label-color21 = | mark-title21= Fish-Tail -I | mark-description21=| label-size21 = 10

| mark-coord22= {{coord|28.5137267|96.4185297}}| caption22 =Fish-Tail -II |label22= Fish-Tail -II |label-pos22 = left | mark-size22 = 8| mark22 = Red pog.svg | label-color22 = | mark-title22= Fish-Tail -II | mark-description22=| label-size22 = 10

| mark-coord23= {{coord|28.8481|94.0435}}| caption23 =Lamang(?) |label23= Lamang(?) |label-pos23 = left | mark-size23 = 8| mark23 = Red pog.svg | label-color23 = | mark-title23= Lamang | mark-description23=| label-size23 = 10|label-offset-y23=-5

| mark-coord25= {{coord|27.3157|91.9576}}| caption25 =Sakteng Wildlife Sanctuary |label25= Sakteng WLS |label-pos25 =bottom | mark-size25 = 8| mark25 = Yellow pog.svg | label-color25 = | mark-title25= Sakteng Wildlife Sanctuary | mark-description25=| label-size25 = 10|label-offset-y25=-3

}}
{| class="wikitable sortable"
! style="text-align:left;" | SN
! Disputed area / sector <br>(alternate names)
! Chinese Province
! Indian State/UT
! Operational control
! Incidents/comments
|-
| 1
| ] (Shaksgam)
| ]
| ]
| China
| Conditionally ceded by Pakistan to China subject to resolution with India. India-controlled ] lies on its southern border at India-Pakistan-China westernmost "operational" trijunction.
|-
| 2
| ]
| Xinjiang and ]
| Ladakh
| China
| Served by ] AGL,<ref name=padum1> {{Webarchive|url=https://web.archive.org/web/20200807053949/https://www.deccanherald.com/content/387892/india-plans-advanced-landing-strips.html |date=7 August 2020 }}, Deccan Herald, 2014.</ref> and ]. ] AGL<ref name=padum1/> and ] are 2nd line of defence. China-controlled Shaksgam and Aksai Chin border the India-controlled ] area disputed by Pakistan. See also ], ], ], ], ], ], ]. ] as hot spots in this sector. Other contested locations include ].<ref>{{Cite web|last=Singh|first=Sushant|date=4 June 2020|title=De-escalation process underway: 2 LAC flashpoints are not in list of identified areas still contested|url=https://indianexpress.com/article/india/india-china-ladakh-border-lac-galwan-6441494/|access-date=31 October 2020|website=The Indian Express|archive-date=7 November 2020|archive-url=https://web.archive.org/web/20201107141448/https://indianexpress.com/article/india/india-china-ladakh-border-lac-galwan-6441494/|url-status=live}}</ref>
|-
| 3
| ] / ] (Demchok sector)
| Tibet
| Ladakh
| India / China
| Served by ] AGL.<ref name=padum1/> Padum AGL<ref name=padum1/> and Leh Airport are 2nd line of defence.
|-
| 4
| ] North
| Tibet
| Ladakh
| India
| rowspan=2 | Served by ] AGL.<ref name=padum1/> Chumar sector has 2 noncontiguous areas, north and south. India has road up to the claimed border. China does not have a road up to border. Both India and China are also served by helipads.
|-
| 5
| Chumar South
| Tibet
| Ladakh
| India
|-
| 6
| ] <br>(Sumdo) <!-- Retain the altername of the sector (in brackets). Media uses 1 or all of these and more names. -->
| Tibet
| ]
| India
| rowspan=2 | Served by dual use ] and ].<ref name=none1/> ]-] AGL has been surveyed,<ref name=none1/> which Will be closest AGL to Chumar, Kaurik, and Tashigang-Shipki La disputed area, but as of July 2020 no progress has been made. Himachal Pradesh has a {{cvt|250|km}} border with China.<ref name=none1> {{Webarchive|url=https://web.archive.org/web/20200708232542/https://timesofindia.indiatimes.com/city/shimla/demand-for-airstrip-in-spiti-grows-amid-increasing-india-china-tension/articleshow/76453863.cms |date=8 July 2020 }}, Times of India, 17 July 2020.</ref> India has road up to the claimed border at Bakiala.
|-
| 7
| ]-] <br>(] and Namgia) <!-- Retain the alternate names of the sector (in brackets). Media uses one or all of these and more names. -->
| Tibet
| Himachal Pradesh
| India
|-
| 8
| ] <br>(also ])
| Tibet
| ]<ref name=hint1/>
| India
| The valley of Jadh Ganga is claimed by China. The Indians control the whole extent of Jadh Ganga. Some of the villages in the area are ], ], ], ] and Tirpani, which all lie in the valley of the Jadh Ganga.
|-
| 9
| ]
| Tibet
| ]<ref name=hint1/>
| India
| ] primarily and ] secondarily serve Bara Hoti and Nelang-Pulam Sumda sectors as AGLs. ] has 42 BoPs (border outposts) in Bara Hoti sector and Mana Pass area (Pulam Sumda sector).<ref name=hint1/> Uttrakhand has a {{cvt|350|km}} border with China.<ref name=hint1> {{Webarchive|url=https://web.archive.org/web/20200801075556/https://www.hindustantimes.com/india-news/eyeing-national-security-uttarakhand-itbp-to-improve-border-infrastructure/story-UKZOI5g5xzJ5KDnCCM8V7K.html |date=1 August 2020 }}, Hindustan Times, 18 July 2020.</ref> India is building ],<ref name=be1>{{Cite web|date=26 December 2019|title=Joshimath-Malari highway inaugurated|url=https://www.projectstoday.com/News/Joshimath-Malari-highway-inaugurated|access-date=19 June 2020|website=www.projectstoday.com|archive-date=9 February 2022|archive-url=https://web.archive.org/web/20220209115701/https://www.projectstoday.com/News/Joshimath-Malari-highway-inaugurated|url-status=live}}</ref><ref name=":61">{{Cite web|date=20 February 2018|title=BRO officials asked to speed up pending road projects|url=https://www.hindustantimes.com/dehradun/bro-officials-asked-to-speed-up-pending-road-projects/story-bAInj85nna4zQ3Z49sjadL.html|access-date=19 June 2020|website=Hindustan Times|archive-date=21 June 2020|archive-url=https://web.archive.org/web/20200621234630/https://www.hindustantimes.com/dehradun/bro-officials-asked-to-speed-up-pending-road-projects/story-bAInj85nna4zQ3Z49sjadL.html|url-status=live}}</ref> which will be completed by December 2020.<ref name=":2">{{Cite news|last=Singh|first=Vijaita|date=3 March 2018|title=Govt. puts delayed road projects on Indo-China border on track|work=The Hindu|url=https://www.thehindu.com/news/national/govt-puts-delayed-road-projects-on-indo-china-border-on-track/article22920308.ece|access-date=18 June 2020|issn=0971-751X|archive-date=19 June 2020|archive-url=https://web.archive.org/web/20200619134947/https://www.thehindu.com/news/national/govt-puts-delayed-road-projects-on-indo-china-border-on-track/article22920308.ece|url-status=live}}</ref><ref name=":3">{{Cite web|last=Singh|first=Jitendra Bahadur|date=17 June 2020|title=India to accelerate construction of roads along Chinese border: Sources|url=https://www.indiatoday.in/india/story/india-to-accelerate-construction-of-roads-along-chinese-border-sources-1690060-2020-06-17|access-date=18 June 2020|website=India Today|archive-date=17 June 2020|archive-url=https://web.archive.org/web/20200617235109/https://www.indiatoday.in/india/story/india-to-accelerate-construction-of-roads-along-chinese-border-sources-1690060-2020-06-17|url-status=live}}</ref>
|-
| 10
| Part of ] (especially ])
| Tibet
| Arunachal Pradesh
| India
| ] and AGLs at ], ], ], ], ], ] and ] serve this sector.<ref name=Arun1> {{Webarchive|url=https://web.archive.org/web/20201022203752/https://economictimes.indiatimes.com/news/defence/iaf-to-have-7-operational-advanced-landing-grounds-in-arunachal-pradesh-in-a-month/articleshow/49809013.cms?from=mdr |date=22 October 2020 }}, Economic Times, 2018.</ref> Most of India-controlled Arunachal Pradesh is also claimed by China, especially ]. See also ] at Tawang.
|-
|}

Bhutan's ] area on Sikkim-China-Bhutan tri-junction, disputed by China in which Bhutan is assisted by India, has been kept out of this list, see also ] at Doklam and ] in Sikkim. ] and ] will hold the 9th round of military commander level talks on 24 January 2021, The talks will be held in ] opposite to the ] sector in ].<ref>{{Cite news|last=The Indian Hawk|first=Indian Defence News|date=24 January 2021|title=India-China to hold 9th round of military commander level talks today|work=]|url=https://www.theindianhawk.com/2021/01/india-china-to-hold-9th-round-of-military-commander-level-talks-today.html|access-date=24 January 2021|archive-date=24 January 2021|archive-url=https://web.archive.org/web/20210124021350/https://www.theindianhawk.com/2021/01/india-china-to-hold-9th-round-of-military-commander-level-talks-today.html|url-status=live}}</ref>


==See also== ==See also==
{{col div|colwidth=27em}}
*]
* ]
*]
* ]
*]
* ]
*]
* ]
*]
* ]
* ]
* ]
* ]
* ]
* ]
* ]
* ]
* ]
{{colend}}


==References== == References ==
{{reflist|2}} {{Reflist}}
'''Bibliography'''
*{{cite book|last1=Fisher |first1=Margaret W. |last2=Rose |first2=Leo E. |last3=Huttenback |first3=Robert A. |author-link3=Robert Huttenback |title=Himalayan Battleground: Sino-Indian Rivalry in Ladakh |date=1963 |publisher=Praeger |url=https://archive.org/details/himalayanbattleg0000unse/mode/2up |via=archive.org |url-access=registration}}
*{{Cite journal|last=Ganguly|first=Sumit|date=December 1989|title=The Sino-Indian Border Talks, 1981-1989: A View from New Delhi|journal=Asian Survey|volume=29|issue=12|pages=1123–1135 |doi=10.2307/2644760 |jstor=2644760 |hdl=2022/25945|hdl-access=free}}
* {{cite book|last=Hoffmann |first=Steven A. |title=India and the China Crisis |url=https://books.google.com/books?id=BpSRwC5_EPUC |year=1990 |publisher=University of California Press |isbn=978-0-520-06537-6}}
*{{Cite book|last=Kumar|first=Satish|url=https://books.google.com/books?id=gsBcCgAAQBAJ|title=India's National Security: Annual Review 2013|publisher=Routledge|year=2014|isbn=9781317324614|editor-last=Kumar|editor-first=Satish |location=India|chapter=2(ii): External Security Situation}}
* {{cite book|last=Maxwell |first=Neville |author-link=Neville Maxwell |title=India's China War |url=https://books.google.com/books?id=csbHAAAAIAAJ |year=1970 |publisher=Pantheon Books |isbn=978-0-394-47051-1}} Also available on {{Webarchive|url=https://web.archive.org/web/20131101121143/http://www.scribd.com/doc/12249475/Indias-China-War-Neville-Maxwell |date=1 November 2013 }}.
* {{citation |last=Raghavan |first=Srinath |author-link=Srinath Raghavan |title=War and Peace in Modern India |url=https://books.google.com/books?id=EbtBJb1bsHUC |date=2010 |publisher=Palgrave Macmillan |isbn=978-1-137-00737-7}}
*{{Cite book|last=Sali|first=M. L.|url=https://books.google.com/books?id=Z6y2E9gw5oIC|title=India-China Border Dispute: A Case Study of the Eastern Sector|publisher=APH Publishing|year=1998|isbn=8170249643 |location=New Delhi}}
*{{Cite thesis|last=Westcott|first=Stephen|title=The Intractable Sino-Indian Border Dispute: A Theoretical and Historical Account|date=2017|publisher=Murdoch University|url=https://researchrepository.murdoch.edu.au/id/eprint/41262/1/Westcott2017.pdf|archive-url=https://web.archive.org/web/20210301060523/https://researchrepository.murdoch.edu.au/id/eprint/41262/1/Westcott2017.pdf|archive-date=1 March 2021}}
* {{cite book|last=Woodman |first=Dorothy |title=Himalayan Frontiers: A Political Review of British, Chinese, Indian, and Russian Rivalries |publisher=Praeger |year=1970 |url=https://archive.org/details/himalayanfrontie00wood |via=archive.org}}

==Further reading==
{{Library resources box}}{{Commons category|Maps of Sino-Indian border dispute}}
* {{cite journal|last1=Chervin|first1=Reed|year=2020|title='Cartographic Aggression': Media Politics, Propaganda, and the Sino-Indian Border Dispute|journal=Journal of Cold War Studies|volume=22|issue=3 |pages=225–247 |doi=10.1162/jcws_a_00911|s2cid=221117342|doi-access=free}}
*{{Cite book|last=Gardner|first=Kyle|title=The Frontier Complex: Geopolitics and the Making of the India-China Border, 1846–1962|publisher=Cambridge University Press|year=2021|isbn=9781108840590}}
* {{cite news |last1=Johny |first1=Stanly |title='The McMahon Line – A Century of Discord' review: The disputed frontier |url=https://www.thehindu.com/books/books-reviews/the-mcmahon-line-a-century-of-discord-review-the-disputed-frontier/article28585896.ece |access-date=18 October 2019 |work=The Hindu |date=20 July 2019 |url-status=live |archive-url=https://web.archive.org/web/20191018141809/https://www.thehindu.com/books/books-reviews/the-mcmahon-line-a-century-of-discord-review-the-disputed-frontier/article28585896.ece |archive-date=18 October 2019}}
*{{Cite book|last=Noorani|first=A.G.|title=India–China Boundary Problem 1846–1947: History and Diplomacy |publisher=Oxford University Press India|year=2010|isbn=9780199088393|author-link=A. G. Noorani}}
*{{citation |last=Singh|first=J.J.|author-link=J. J. Singh|title=The McMahon Line – A Century of Discord |url=https://books.google.com/books?id=faSPDwAAQBAJ |year=2019|publisher=HarperCollins Publishers India |isbn=9789352777761}}, provides a detailed description of the border dispute between India and China.


== External links == == External links ==
* *

{{China–India relations}}


{{Territorial disputes in East, South, and Southeast Asia}} {{Territorial disputes in East, South, and Southeast Asia}}


{{DEFAULTSORT:Origins Of The Sino-Indian Border Dispute}} ]
]
]
]

Latest revision as of 13:26, 5 December 2024

Border dispute between China and India
The examples and perspective in this article may not include all significant viewpoints. Please improve the article or discuss the issue. (September 2017) (Learn how and when to remove this message)
This article is about the Sino-Indian border dispute. For China–India relations, see China–India relations.

Sino–Indian border dispute
Part of the Kashmir dispute

Line of Actual Control between China and India (map by the CIA)
Date20 October 1962 – present
(62 years, 2 months and 6 days)
LocationLine of Actual Control
Status ongoing

The Sino–Indian border dispute is an ongoing territorial dispute over the sovereignty of two relatively large, and several smaller, separated pieces of territory between China and India. The territorial disputes between the two countries result from the historical consequences of colonialism in Asia and the lack of clear historical boundary demarcations.

The first of the territories, Aksai Chin, is administered by China and claimed by India; it is mostly uninhabited high-altitude wasteland but with some significant pasture lands at the margins. It lies at the intersection of Kashmir, Tibet and Xinjiang, and is crossed by China's Xinjiang-Tibet Highway; the other disputed territory is south of the McMahon Line, in the area formerly known as the North-East Frontier Agency and now a state called Arunachal Pradesh. It is administered by India and claimed by China. The McMahon Line was signed between British India and Tibet to form part of the 1914 Simla Convention, but the latter was never ratified by China. China disowns the McMahon Line agreement, stating that Tibet was not independent when it signed the Simla Convention.

The 1962 Sino-Indian War was fought in both disputed areas. Chinese troops attacked Indian border posts in Ladakh in the west and crossed the McMahon line in the east. There was a brief border clash in 1967 in the region of Sikkim, despite there being an agreed border in that region. In 1987 and in 2013, potential conflicts over the Lines of Actual Control were successfully de-escalated. A conflict involving a Bhutanese-controlled area on the border between Bhutan and China was successfully de-escalated in 2017 following injuries to both Indian and Chinese troops. Multiple skirmishes broke out in 2020, escalating to dozens of deaths in June 2020.

Agreements signed pending the ultimate resolution of the boundary question were concluded in 1993 and 1996. This included "confidence-building measures" and the Line of Actual Control. To address the boundary question formalised groups were created such as the Joint Working Group (JWG) on the boundary question. It was to be assisted by the Diplomatic and Military Expert Group. In 2003 the Special Representatives (SRs) mechanism was constituted. In 2012 another dispute resolution mechanism, the Working Mechanism for Consultation and Coordination (WMCC) was framed.

Background

The territorial disputes between the two countries result from the historical consequences of colonialism in Asia and the lack of clear historical boundary demarcations. There was one historical attempt to set a proposed boundary, the McMahon Line, by Great Britain during the 1913-1914 Simla Convention. The Republic of China rejected the proposed boundary. The unresolved dispute over the boundary became contentious after India gained its independence and the People's Republic of China was established. The disputed borders are complicated by the lack of administrative presence in the disputed areas, which are remote.

Disagreements also result from the fact that the Line of Actual Control has never been distinctly demarcated, with China and India often disagreeing over its precise location.

Aksai Chin

Main article: Aksai Chin
The western portion of the Line of Actual Control, separating the Eastern Ladakh and Aksai Chin. In the southern Demchok region, only two claim lines are shown (map by the CIA).

From the area's lowest point on the Karakash River at about 14,000 feet (4,300 m) to the glaciated peaks up to 22,500 feet (6,900 m) above sea level, Aksai Chin is a desolate, largely uninhabited area. It covers an area of about 37,244 square kilometres (14,380 sq mi). The desolation of this area meant that it had no significant human importance other than ancient trade routes crossing it, providing brief passage during summer for caravans of yaks from Xinjiang and Tibet.

One of the earliest treaties regarding the boundaries in the western sector was issued in 1842 following the Dogra–Tibetan War. The Sikh Empire of the Punjab region had annexed Ladakh into the state of Jammu in 1834. In 1841, they invaded Tibet with an army. Tibetan forces defeated the Sikh army and in turn entered Ladakh and besieged Leh. After being checked by the Sikh forces, the Tibetan and the Sikhs signed the Treaty of Chushul in September 1842, which stipulated no transgressions or interference in the other country's frontiers. The British defeat of the Sikhs in 1846 resulted in transfer of sovereignty over Ladakh to the British, and British commissioners attempted to meet with Chinese officials to discuss the border they now shared. However, both sides were sufficiently satisfied that a traditional border was recognised and defined by natural elements, and the border was not demarcated. The boundaries at the two extremities, Pangong Lake and Karakoram Pass, were reasonably well-defined, but the Aksai Chin area in between lay largely undefined.

The Johnson Line

Map of Central Asia (1878) showing Khotan (near top right corner). The previous border claimed by the British Indian Empire is shown in the two-toned purple and pink band with Shahidulla and the Kilik, Kilian and Sanju Passes clearly north of the border.
The map shows the Indian and Chinese claims of the border in the Aksai Chin region, the Macartney-MacDonald line, the Foreign Office Line, as well as the progress of Chinese forces as they occupied areas during the Sino-Indian War.
Main article: Ardagh–Johnson Line

W. H. Johnson, a civil servant with the Survey of India proposed the "Johnson Line" in 1865, which put Aksai Chin in Jammu and Kashmir. This was the time of the Dungan revolt, when China did not control Xinjiang, so this line was never presented to the Chinese. Johnson presented this line to the Maharaja of Jammu and Kashmir, who then claimed the 18,000 square kilometres contained within his territory and by some accounts he claimed territory further north as far as the Sanju Pass in the Kun Lun Mountains. The Maharajah of Jammu and Kashmir constructed a fort at Shahidulla (modern-day Xaidulla), and had troops stationed there for some years to protect caravans. Eventually, most sources placed Shahidulla and the upper Karakash River firmly within the territory of Xinjiang (see accompanying map). According to Francis Younghusband, who explored the region in the late 1880s, there was only an abandoned fort and not one inhabited house at Shahidulla when he was there – it was just a convenient staging post and a convenient headquarters for the nomadic Kirghiz. The abandoned fort had apparently been built a few years earlier by the Dogras. In 1878 the Chinese had reconquered Xinjiang, and by 1890 they already had Shahidulla before the issue was decided. By 1892, China had erected boundary markers at Karakoram Pass.

In 1897 a British military officer, Sir John Ardagh, proposed a boundary line along the crest of the Kun Lun Mountains north of the Yarkand River. At the time Britain was concerned at the danger of Russian expansion as China weakened, and Ardagh argued that his line was more defensible. The Ardagh line was effectively a modification of the Johnson line, and became known as the "Johnson-Ardagh Line".

The Macartney-Macdonald Line

Main article: Macartney–MacDonald Line
The map given by Hung Ta-chen to the British consul at Kashgar in 1893. The boundary, marked with a thin dot-dashed line, matches the Johnson line

In 1893, Hung Ta-chen, a senior Chinese official at St. Petersburg, gave maps of the region to George Macartney, the British consul general at Kashgar, which coincided in broad details. In 1899, Britain proposed a revised boundary, initially suggested by Macartney and developed by the Governor General of India Lord Elgin. This boundary placed the Lingzi Tang plains, which are south of the Laktsang range, in India, and Aksai Chin proper, which is north of the Laktsang range, in China. This border, along the Karakoram Mountains, was proposed and supported by British officials for a number of reasons. The Karakoram Mountains formed a natural boundary, which would set the British borders up to the Indus River watershed while leaving the Tarim River watershed in Chinese control, and Chinese control of this tract would present a further obstacle to Russian advance in Central Asia. The British presented this line, known as the Macartney-MacDonald Line, to the Chinese in 1899 in a note by Sir Claude MacDonald. The Qing government did not respond to the note. According to some commentators, China believed that this had been the accepted boundary.

1899 to 1947

Both the Johnson-Ardagh and the Macartney-MacDonald lines were used on British maps of India. Until at least 1908, the British took the Macdonald line to be the boundary, but in 1911, the Xinhai Revolution resulted in the collapse of central power in China, and by the end of World War I, the British officially used the Johnson Line. However they took no steps to establish outposts or assert actual control on the ground. In 1927, the line was adjusted again as the government of British India abandoned the Johnson line in favour of a line along the Karakoram range further south. However, the maps were not updated and still showed the Johnson Line.

Postal Map of China published by the Government of China in 1917. The boundary in Aksai Chin is as per the Johnson line.

From 1917 to 1933, the "Postal Atlas of China", published by the Government of China in Peking had shown the boundary in Aksai Chin as per the Johnson line, which runs along the Kunlun Mountains. The "Peking University Atlas", published in 1925, also put the Aksai Chin in India. When British officials learned of Soviet officials surveying the Aksai Chin for Sheng Shicai, warlord of Xinjiang in 1940–1941, they again advocated the Johnson Line. At this point the British had still made no attempts to establish outposts or control over the Aksai Chin, nor was the issue ever discussed with the governments of China or Tibet, and the boundary remained undemarcated at India's independence.

Since 1947

Upon independence in 1947, the government of India fixed its official boundary in the west, which included the Aksai Chin, in a manner that resembled the Ardagh–Johnson Line. India's basis for defining the border was "chiefly by long usage and custom". Unlike the Johnson line, India did not claim the northern areas near Shahidulla and Khotan. From the Karakoram Pass (which is not under dispute), the Indian claim line extends northeast of the Karakoram Mountains north of the salt flats of the Aksai Chin, to set a boundary at the Kunlun Mountains, and incorporating part of the Karakash River and Yarkand River watersheds. From there, it runs east along the Kunlun Mountains, before turning southwest through the Aksai Chin salt flats, through the Karakoram Mountains, and then to Pangong Lake.

On 1 July 1954 Prime Minister Nehru wrote a memo directing that the maps of India be revised to show definite boundaries on all frontiers. Up to this point, the boundary in the Aksai Chin sector, based on the Johnson Line, had been described as "undemarcated."

Trans Karakoram Tract

Main article: Trans Karakoram Tract

The Johnson Line is not used west of the Karakoram Pass, where China adjoins Pakistan-administered Gilgit–Baltistan. On 13 October 1962, China and Pakistan began negotiations over the boundary west of the Karakoram Pass. In 1963, the two countries settled their boundaries largely on the basis of the Macartney-MacDonald Line, which left the Trans Karakoram Tract approximately 5,180 km (2,000 sq mi) to 5,300 km (2,000 sq mi) in China, although the agreement provided for renegotiation in the event of a settlement of the Kashmir conflict. India does not recognise that Pakistan and China have a common border, and claims the tract as part of the domains of the pre-1947 state of Kashmir and Jammu. However, India's claim line in that area does not extend as far north of the Karakoram Mountains as the Johnson Line. China and India still have disputes on these borders.

The McMahon Line

The McMahon Line is the northern border of the red tinted disputed area.
Main article: McMahon Line

British India annexed Assam in northeastern India in 1826, by Treaty of Yandabo at the conclusion of the First Anglo-Burmese War (1824–1826). After subsequent Anglo-Burmese Wars, the whole of Burma was annexed giving the British a border with China's Yunnan province.

In 1913–14, representatives of Great Britain, China, and Tibet attended a conference in Simla, India and drew up an agreement concerning Tibet's status and borders. The McMahon Line, a proposed boundary between Tibet and India for the eastern sector, was drawn by British negotiator Henry McMahon on a map attached to the agreement. All three representatives initialled the agreement, but Beijing soon objected to the proposed Sino-Tibet boundary and repudiated the agreement, refusing to sign the final, more detailed map. After approving a note which stated that China could not enjoy rights under the agreement unless she ratified it, the British and Tibetan negotiators signed the Simla Convention and more detailed map as a bilateral accord. Neville Maxwell states that McMahon had been instructed not to sign bilaterally with Tibetans if China refused, but he did so without the Chinese representative present and then kept the declaration secret.

V. K. Singh argues that the basis of these boundaries, accepted by British India and Tibet, was that the historical boundaries of India were the Himalayas and the areas south of the Himalayas were traditionally Indian and associated with India. The high watershed of the Himalayas was proposed as the border between India and its northern neighbours. India's government held the view that the Himalayas were the ancient boundaries of the Indian subcontinent and thus should be the modern boundaries of British India and later the Republic of India.

Chinese boundary markers, including one set up by the newly created Chinese Republic, stood near Walong until January 1914, when T. O'Callaghan, an assistant administrator of North East Frontier Agency (NEFA)'s eastern sector, relocated them north to locations closer to the McMahon Line (albeit still South of the Line). He then went to Rima, met with Tibetan officials, and saw no Chinese influence in the area.

By signing the Simla Convention with Tibet, the British had violated the Anglo-Russian Convention of 1907, in which both parties were not to negotiate with Tibet, "except through the intermediary of the Chinese Government", as well as the Anglo-Chinese Convention of 1906, which bound the British government "not to annex Tibetan territory." Because of doubts concerning the legal status of the accord, the British did not put the McMahon Line on their maps until 1937, nor did they publish the Simla Convention in the treaty record until 1938. Rejecting Tibet's 1913 declaration of independence, China argued that the Simla Convention and McMahon Line were illegal and that Tibetan government was merely a local government without treaty-making powers.

The British records show that the Tibetan government's acceptance of the new border in 1914 was conditional on China accepting the Simla Convention. Since the British were not able to get an acceptance from China, Tibetans considered the McMahon line invalid. Tibetan officials continued to administer Tawang and refused to concede territory during negotiations in 1938. The governor of Assam asserted that Tawang was "undoubtedly British" but noted that it was "controlled by Tibet, and none of its inhabitants have any idea that they are not Tibetan." During World War II, with India's east threatened by Japanese troops and with the threat of Chinese expansionism, British troops secured Tawang for extra defence.

China's claim on areas south of the McMahon Line, encompassed in the NEFA, were based on the traditional boundaries. India believes that the boundaries China proposed in Ladakh and Arunachal Pradesh have no written basis and no documentation of acceptance by anyone apart from China. The Indian government has argued that China claims the territory on the basis that it was under Chinese imperial control in the past, while the Chinese government argues that India claims the territory on the basis that it was under British imperial control in the past. The last Qing emperor's 1912 edict of abdication authorised its succeeding republican government to form a union of "five peoples, namely, Manchus, Han Chinese, Mongols, Muslims, and Tibetans together with their territory in its integrity." However, the practice that India does not place a claim to the regions which previously had the presence of the Mauryan Empire and Chola Dynasty, but which were heavily influenced by Indian culture, further complicates the issue.

India's claim line in the eastern sector follows its interpretation of the McMahon Line. The line drawn by McMahon on the detailed 24–25 March 1914 Simla Treaty maps clearly starts at 27°45’40"N, a trijunction between Bhutan, China, and India, and from there, extends eastwards. Most of the fighting in the eastern sector before the start of the war would take place immediately north of this line. However, India claimed that the intent of the treaty was to follow the main watershed ridge divide of the Himalayas based on memos from McMahon and the fact that over 90% of the McMahon Line does in fact follow the main watershed ridge divide of the Himalayas. They claimed that territory south of the high ridges here near Bhutan (as elsewhere along most of the McMahon Line) should be Indian territory and north of the high ridges should be Chinese territory. In the Indian claim, the two armies would be separated from each other by the highest mountains in the world.

During and after the 1950s, when India began patrolling this area and mapping in greater detail, they confirmed what the 1914 Simla agreement map depicted: six river crossings that interrupted the main Himalayan watershed ridge. At the westernmost location near Bhutan north of Tawang, they modified their maps to extend their claim line northwards to include features such as Thag La ridge, Longju, and Khinzemane as Indian territory. Thus, the Indian version of the McMahon Line moves the Bhutan-China-India trijunction north to 27°51’30"N from 27°45’40"N. India would claim that the treaty map ran along features such as Thag La ridge, though the actual treaty map itself is topographically vague (as the treaty was not accompanied with demarcation) in places, shows a straight line (not a watershed ridge) near Bhutan and near Thag La, and the treaty includes no verbal description of geographic features nor description of the highest ridges.

Sikkim

India receives the body of a soldier after the Sino-Indian border conflict, 1967

The Nathu La and Cho La clashes were a series of military clashes in 1967 between India and China alongside the border of the Himalayan Kingdom of Sikkim, then an Indian protectorate. The end of the conflicts saw a Chinese military withdrawal from Sikkim.

In 1975, the Sikkimese monarchy held a referendum, in which the Sikkemese voted overwhelmingly in favour of joining India. At the time China protested and rejected it as illegal. The Sino-Indian Memorandum of 2003 was hailed as a de facto Chinese acceptance of the annexation. China published a map showing Sikkim as a part of India and the Foreign Ministry deleted it from the list of China's "border countries and regions". However, the Sikkim-China border's northernmost point, "The Finger", continues to be the subject of dispute and military activity.

Chinese Prime Minister Wen Jiabao said in 2005 that "Sikkim is no longer the problem between China and India."

Boundary disputes

1947–1962

During the 1950s, the People's Republic of China built a 1,200 kilometres (750 mi) road connecting Xinjiang and western Tibet, of which 179 kilometres (111 mi) ran south of the Johnson Line through the Aksai Chin region claimed by India. Aksai Chin was easily accessible from China, but for the Indians on the south side of the Karakoram, the mountain range proved to be a complication in their access to Aksai Chin. The Indians did not learn of the existence of the road until 1957, which was confirmed when the road was shown in Chinese maps published in 1958.

The Indian position, as argued by prime minister Jawaharlal Nehru, was that the Aksai Chin was "part of the Ladakh region of India for centuries".

The Chinese premier Zhou Enlai argued that the western border had never been delimited, that the Macartney-MacDonald Line, which left part of Aksai Chin within Chinese borders was the only line ever proposed to a Chinese government. He also claimed that Aksai Chin was already under Chinese jurisdiction, and that negotiations should take into account the status quo.

In 1960, Nehru and Zhou Enlai agreed to hold discussions between officials from India and China for examining the historical, political and administrative basis of the boundary dispute. The two sides disagreed on the major watershed that defined the boundary in the western sector. The Chinese statements with respect to their border claims often misrepresented the cited sources.

1967 Nathu La and Cho La clashes

The Nathu La and Cho La clashes were a series of military clashes in 1967, between India and China alongside the border of the Himalayan Kingdom of Sikkim, then an Indian protectorate.

The Nathu La clashes started on 11 September 1967, when the People's Liberation Army (PLA) launched an attack on Indian posts at Nathu La, and lasted till 15 September 1967. In October 1967, another military duel took place at Cho La and ended on the same day.

According to independent sources, the Indian forces achieved "decisive tactical advantage" and defeated the Chinese forces in these clashes. Many PLA fortifications at Nathu La were said to be destroyed, where the Indian troops drove back the attacking Chinese forces.

1987 Sino Indian skirmish

Main article: Sumdorong Chu standoff

The 1987 Sino-Indian skirmish was the third military conflict between the Chinese People's Liberation Army Ground Force and Indian Army that occurred at the Sumdorong Chu Valley, with the previous one taking place 20 years earlier.

"1968–2017"

SINO-INDIAN BORDER DEFENSES CHUSHUL AREA (CIA, 1963)

On 20 October 1975, 4 Indian soldiers were killed at Tulung La in Arunachal Pradesh. According to the official statement by the Indian government, a patrol of the Assam Rifles comprising a non-commissioned officer (NCO) and four other soldiers was ambushed by about 40 Chinese soldiers while in an area well within Indian territory, and which had been regularly patrolled for years without incident. Four members of the patrol unit were initially listed as missing before confirmation via diplomatic channels they had been killed by the Chinese troops; their bodies were later returned. The Indian government registered a strong protest with the Chinese.

In 2006, the Chinese ambassador to India claimed that all of Arunachal Pradesh is Chinese territory amidst a military buildup. At the time, both countries claimed incursions as much as a kilometre at the northern tip of Sikkim. In 2009, India announced it would deploy additional military forces along the border. In 2014, India proposed China should acknowledge a "One India" policy to resolve the border dispute.

The reactions of Indian officials to these successive incursions have also been to a pattern:

  • Suppress information
  • Deny

Who is misled when information is suppressed? Not the Chinese— Not other countries, be they the US or Vietnam The people who are lulled are the people of India. And the object of lulling them is straightforward—not just that they should not come to think that their government has been negligent, but that they should not pressurize the government into doing anything more than what it is doing.

Arun Shourie, Self-Deception: India's China Policies, 2013

In April 2013 India claimed, referencing their own perception of the Line of Actual Control (LAC) location, that Chinese troops had established a camp in the Daulat Beg Oldi sector, 10 km (6.2 mi) on their side of the Line of Actual Control. This figure was later revised to a 19 km (12 mi) claim. According to Indian media, the incursion included Chinese military helicopters entering Indian airspace to drop supplies to the troops. However, Chinese officials denied any trespassing having taken place. Soldiers from both countries briefly set up camps on the ill-defined frontier facing each other, but the tension was defused when both sides pulled back soldiers in early May. In September 2014, India and China had a standoff at the LAC, when Indian workers began constructing a canal in the border village of Demchok, Ladakh, and Chinese civilians protested with the army's support. It ended after about three weeks, when both sides agreed to withdraw troops. The Indian army claimed that the Chinese military had set up a camp 3 km (1.9 mi) inside territory claimed by India. According to scholar Harsh V. Pant, China gains territory with every incursion.

In September 2015, Chinese and Indian troops faced off in the Burtse region of northern Ladakh after Indian troops dismantled a disputed watchtower the Chinese were building close to the mutually agreed patrolling line.

2017 Doklam military standoff

Graphs are unavailable due to technical issues. Updates on reimplementing the Graph extension, which will be known as the Chart extension, can be found on Phabricator and on MediaWiki.org.
Major sites of Chinese transgressions on the LAC (2015–2019) per official Indian Army and Indo-Tibetan Border Police data

In June, a military standoff occurred between India and China in the disputed territory of Doklam, near the Doka La pass. On 16 June 2017, the Chinese brought heavy road building equipment to the Doklam region and began constructing a road in the disputed area. Previously, China had built a dirt road terminating at Doka La where Indian troops were stationed. They would conduct foot patrol from this point up till the Royal Bhutanese Army (RBA) post at Jampheri Ridge. The dispute that ensued post 16 June stemmed from the fact that the Chinese had begun building a road below Doka La, in what India and Bhutan claim to be disputed territory. This resulted in Indian intervention of China's road construction on 18 June, two days after construction began. Bhutan claims that the Chinese have violated the written agreements between the two countries that were drawn up in 1988 and 1998 after extensive rounds of talks. The agreements drawn state that status quo must be maintained in the Doklam area as of before March 1959. It is these agreements that China has violated by constructing a road below Doka La. A series of statements from each countries' respective External Affairs ministries were issued defending each countries' actions. Due to the ambiguity of earlier rounds of border talks beginning from the 1890 Anglo-Chinese Convention that was signed in Kolkata on 17 March 1890, each country refers to different agreements drawn when trying to defend its position on the border dispute. Following the incursion, on 28 June, the Chinese military claimed that India had blocked the construction of a road that was taking place in China's sovereign territory. On 30 June, India's Foreign Ministry claimed that China's road construction in violation of the status quo had security implications for India. Following this, on 5 July, Bhutan issued a demarche asking China to restore the status quo as of before 16 June. Throughout July and August, the Doklam issue remained unresolved. On 28 August, India issued a statement saying that both countries have agreed to "expeditious disengagement" in the Doklam region.

In 2019, India and China decided to coordinate border patrolling at one disputed point along the LAC.

2020–2022 skirmishes

Main articles: 2020–2022 China–India skirmishes and Timeline of the 2020–2022 China–India skirmishes

In June 2020, Indian and Chinese troops engaged in a brawl in the Galwan River valley which reportedly led to the deaths of 20 Indian soldiers. International media claimed 40+ Chinese soldiers had been killed, but this number has not been confirmed by Chinese authorities.

Timeline

 Border diplomacy:↓Formation of JWG1993 agreement1996 agreement↓2005 agreement (1) (2)2012 agreement2013 agreement2003 agreement5 point statement↓Border talks resume↓Nathu La/Cho LaSumdorong ChuDoklamGalwanDepsang1962 war Major border events:Tulung LaIndian PM: NehruIndira GandhiI. GandhiR. GandhiNarasimha RaoVajpayeeManmohan SinghNarendra ModiLeader CCP: Mao ZedongHua GuofengHu YaobangZhao ZiyangJiang ZeminHu JintaoXi Jinping8 rounds border talks15 rounds JWG talks22 rounds SR talks20 rounds WMCC talks│1955│1960│1965│1970│1975│1980│1985│1990│1995│2000│2005│2010│2015│2020India China border relations since 1962. Major border incidents and border diplomacy.
Timeline navbar:

Boundary discussions

See also: 2024 India-China Border Patrol Agreement

One of the first set of formal talks between China and India on the border were following Zhou Enlai's visit to India in 19–25 April 1960. Following this there were a further three sessions of talks, the "Official's" talks, between— 15 June-6 July 1960; 15 August-24 September 1960; and 7 November-12 December 1960. These discussions produced the 'Report of the Officials on the boundary question'.

Boundary discussions have covered micro and macro issues of the dispute. At a local level, localised disputes and related events such as de-engagement and de-escalation are tackled. Wider overarching issues include discussion related to a package settlement versus sector-wise, clarification of the LAC and border and accordingly the exchange of maps, and delinking or linking the boundary dispute to other bilateral ties.

Package proposal

China made the so-called "package" offer in 1960, which again came to the table in 1980–85. As explained by former foreign secretary Shyam Saran, China "would be prepared to accept an alignment in the Eastern Sector, in general conforming to the McMahon Line, but India would have to concede Aksai Chin to China in the Western Sector For the Central Sector, the differences were regarded as relatively minor and manageable." In other words, China "offered to hold 26% of the disputed land".

In 1985 China made modifications to the package— "the Indian side would have to make significant and meaningful concessions in the Eastern Sector... for which China would make corresponding but undefined concessions in the Western Sector". Additionally, Tawang was brought up "as indispensable to any boundary settlement". These changes in the package proposal by China remained till at least 2015.

Linking border and other bilateral relations

During the first round of renewed talks between China and India in December 1981, China suggested maintaining the status quo on the border question, and in the meantime other relations could be normalized. By the fourth round in October 1983 the Indian negotiators agreed to normalization in other areas. This aspect of linking or de-linking border relations resurfaced in the 2020–2021 China–India skirmishes.

Legal positions

In the 1980s, during the beginning of talks between the two countries, India made it clear that it would not discuss the legal position of either side as it had already been documented in the 1960 Official's report.

Political initiatives

During the eighth round of talks in November, 1987, in the background of the Sumdorong Chu standoff, the negotiators on both sides came to a conclusion that apart from these bureaucratic level talks, a political move was needed.

Dispute management and resolution mechanism

Indian spokesperson for the Ministry of External Affairs stated in May 2020 that there were enough bilateral mechanisms to solve border disputes diplomatically. However, some critics say that these agreements are "deeply flawed".

Bilateral mechanisms

Bodies/mechanisms have been formed as per bilateral agreements to consult on the boundary question:

Dispute resolution mechanism name Abbr. Date
proposed
Formed on/via First round Last round Total
rounds
Status
Date Statement/Agreement
India-China Joint Working Group on the boundary question JWG - 1988 Joint Press Communique 30 June-4 July 1989 - - -
India-China Diplomatic and Military Expert Group EG - 7 September 1993 Border Peace and Tranquility Agreement 2-4 February 1994 - - -
Special Representatives mechanism on the boundary question SR/SRM 1979 23 June 2003 Declaration on Principles for Relations and Comprehensive Cooperation 26 October 2003 21 December 2019 22 Functional
Working Mechanism for Consultation and Coordination on India-China Border Affairs WMCC 2010 17 January 2012 Agreement on the Establishment of a Working Mechanism for Consultation and Coordination 6 March 2012 18 December 2020 20 Functional
Other: Border Personnel Meeting points, Hotlines (6 hotlines as of July 2021), normal diplomatic channels

Following the 1962 boundary war, official border talks started in December 1981. There were eight rounds of these talks, with the eight round being in 1987. In 1988, through a joint press communique, the border talks were formalized as the 'India-China Joint Working Group on the Boundary Question' (JWG). The JWG met 15 times, the final meeting being in 2005. In 2003 the Special Representatives Mechanism (SRM) was set up as per the 'Declaration on Principles for Relations and Comprehensive Cooperation'.

In April 2005 another agreement mentioned that the JWG, the "India-China Diplomatic and Military Expert Group", and the "Special Representatives on the boundary question" would carry on with their work and consultations. Other than agreements directly related to the border, there have been numerous agreements that worked on other aspects of the bilateral relations such as a memorandum of understanding on military relations that was signed in 2006, that in turn affected the border situation.

Bilateral agreements

Bilateral military communication channels

Border meeting points

About OpenStreetMapsMaps: terms of use 800km
500miles Chushul proposed Lipulekh Pass Daulet Beg Oldi Kibithu Bum La . Nathu La  Border Personnel Meeting points
(existing in red, proposed/discussed in blue)

There are five Border Personnel Meeting points (BPM) for holding rounds of dispute resolution talks among the military personnel with a defined escalation path, such as first between colonels, then between brigadiers, and finally between major generals. Of these five BPM, two are in the Indian Union Territory of Ladakh or India's western (northern) sector corresponding to China's Southern Xinxiang Military District, one in Sikkim and two in Arunachal Pradesh in India's central and eastern sectors corresponding to China's Tibet Military District.

Hotlines

Negotiations for an inter-military hotline started in 2012. It was initially planned for communication between India's Eastern Command and PLA's Chengdu Military Region Command. Negotiations for Director General of Military Operations (DGMOs) level hotline continued in 2013. In 2014 a hotline was set up between the DGMOs of both countries. In 2021 both countries agreed to set up a hotline between their foreign ministers. By 31 July 2021, six hotlines had been set up between commanders; 2 in Ladakh, 2 in Sikkim and 2 in Arunachal Pradesh.

Corps Commander Level Meetings

'Corps Commander Level Meetings' during the 2020–2021 China–India skirmishes allowed both sides to exchange perspectives and was seen as an important way to keep communication open. The length of these meetings varied from 9 hours to over 12 hours. Apart from the military, the chief of the Indo-Tibetan Border Police and a Ministry of External Affairs representative were also present.

In October 2024, India announced that it had reached an agreement over patrolling arrangements along the Line of Actual Control (LAC) in the border area, which would lead to disengagement and resolution of the long-running conflict that began in 2020.

India and China started implementing an agreement to end a military standoff along their disputed Himalayan border. This marks a significant diplomatic development between the two countries since deadly clashes occurred between their armies four years ago. Both sides have agreed on phased disengagement steps aimed at reducing tensions along the Line of Actual Control (LAC), where troops have been deployed in close proximity.

Geostrategic military aspects

Commands and troops deployment

See also: Indian Airbases, Chinese Airbases, Indian Army bases, China's bases along LAC, and Patrol Point
Western Theater Command of China, area under integrated command.
Map of Xinjiang Uyghur Autonomous Region with disputed areas claimed by China shown in blue.Map of Tibet Autonomous Region with disputed areas claimed by China shown in blue.

Chinese Military has an integrated Western Theater Command (WTC) across the whole LAC with India. Western Theater Command also covers provinces of Sichuan, Gansu, Ningxia, Qinghai and Chongqing. China has 5 integrated theater commands.

Indian Military has divided the LAC into 3 sectors - the northern sector (some times also called western sector) across Ladakh and the Chinese-held Aksai Chin, the central sector across Himachal Pradesh and Uttrakhand states, and the eastern sector across Sikkim and Arunachal Pradesh states. Similarly, Indian Airforce has Prayagraj-based Western Air Command, Delhi-based Central Air Command, and Shillong-based Eastern Air Command to cover the LAC. India, whose sole integrated command is Andaman and Nicobar Command, is still going through integration of its various geography and services based commands as of 2020.

The Belfer Center for Science and International Affairs (BCSIA) carried out an independent analysis of troops deployment in 2020. Indian Army strike forces have 225,000 soldiers near its border, all of whom are focused on China. Numbers include 34,000 in the Northern Command, 15,500 in the Central Command, and 175,500 troops in the Eastern Command, including 3,000 soldiers of T-72 tank brigade in Ladakh and 1,000 soldiers of BrahMos cruise missile regiment in Arunachal Pradesh. Of the 200,000 to 230,000 ground forces under China's Western Theater Command, only 110,000 are stationed on its border, while the rest are deployed on China's border with Russia in the North, inside Tibet and Xinjiang, or deployed elsewhere inside Western China. Of the Chinese troops stationed on the India border, mainly belonging to the 76th Group Army and 77th Group Army, 70,000 are deployed in Southern Xinjiang Military District (corresponding to India's northern or western sector in Ladakh), and 40,000 are deployed in Tibet Military District (corresponding to India's central and eastern sector along with the rest of the LAC from Himachal Pradesh to Arunachal Pradesh). The remaining forces would be not be available for deployment to the India border in the case of a wider conflict. This creates a disparity in terms of India's larger number of conventional troops (225,000) focused on the China border, compared to the smaller number of Chinese troops (90,000-120,000) focused on the Indian border, the majority of whom are deployed far from the Indian border while Indian troops are deployed closer. In the case of conflict, while Indian troops are already in position on or near the border, China will have to mobilise troops mainly from Xinjiang and from other Western Theater Command troops inside China's interior.

Command deployment is as follows:

India China
Indian Army Sector / Commands Indian Airforce
Northern (also called "Western")
(Ladakh)
Western Air Command
(Delhi)
Western Theater Command
(Xinjiang and Tibet)
Central
(Himachal Pradesh and Uttrakhand)
Central Air Command
(Prayagraj)
Eastern
(Sikkim and Arunachal Pradesh)
Eastern Air Command
(Shillong)

Village construction

In 2024, The New York Times reported that, according to satellite imagery, China had constructed villages along and inside of disputed territory within Arunachal Pradesh. Chinese individuals, called "border guardians," received annual subsidies to relocate to newly built villages and paid to conduct border patrols.

List of disputed areas

List of disputed areas, each with several hundred to several thousand km area, is as follows:

About OpenStreetMapsMaps: terms of use 150km
100milesNorth of Samar Lungpa North Samar LungpaKaurik KaurikTashigang TashigangBarahoti BarahotiEast of Point 6556 East of Point 6556Trig Heights Trig HeightsDemchok DemchokChumar ChumarDumchele opposite DumcheleMt Sajum East of Mt SajumSpanggur Gap Spanggur GapNorth and South Pangong Tso N&S Pangong Tso North of Kugrang River North of Kugrang River Area of Kongka La Area of Kongka La  Red dots represent sensitive and disputed locations on the line of actual control (LAC) such as Depsang, area of Kongka Pass, north of Kugrang River, north and south Pangong Tso, Spanggur Gap, opposite Dumchele, Demchok sector, Kaurik, Tashigang, Barahoti. About OpenStreetMapsMaps: terms of use 150km
100milesSakteng Wildlife Sanctuary Sakteng WLSLamang Lamang(?)Fish-Tail -II Fish-Tail -IIFish-Tail -I Fish-Tail -IDichu area Dichu areaSumdorong Chu Sumdorong ChuTawang(?) TawangLongju LongjuDoklam DoklamAsaphila Asaphila  Red dots represent sensitive and disputed locations on the line of actual control (LAC). Yellow dots represent select Chinese claims in Bhutan and tri-junction areas related to the Sino-India border dispute. Locations include Asaphila, Doklam, Longju, Tawang, Sumdorong Chu, Dichu area, Sakteng Wildlife Sanctuary, Doklam.
SN Disputed area / sector
(alternate names)
Chinese Province Indian State/UT Operational control Incidents/comments
1 Trans-Karakoram Tract (Shaksgam) Xinjiang Ladakh China Conditionally ceded by Pakistan to China subject to resolution with India. India-controlled Indira Col West lies on its southern border at India-Pakistan-China westernmost "operational" trijunction.
2 Aksai Chin Xinjiang and Tibet Ladakh China Served by Daulat Beg Oldi AGL, and Darbuk–Shyok–DBO Road. Padum AGL and Leh Airport are 2nd line of defence. China-controlled Shaksgam and Aksai Chin border the India-controlled Siachen area disputed by Pakistan. See also 2013 Daulat Beg Oldi Incident, 2020 China–India skirmishes, Depsang Plains, Galwan, Pangong Tso, Hot Springs, Kongka Pass. Shyok as hot spots in this sector. Other contested locations include Samar Lungpa.
3 Demchok / Dêmqog (Demchok sector) Tibet Ladakh India / China Served by Fukche AGL. Padum AGL and Leh Airport are 2nd line of defence.
4 Chumar North Tibet Ladakh India Served by Nyoma AGL. Chumar sector has 2 noncontiguous areas, north and south. India has road up to the claimed border. China does not have a road up to border. Both India and China are also served by helipads.
5 Chumar South Tibet Ladakh India
6 Kaurik
(Sumdo)
Tibet Himachal Pradesh India Served by dual use Shimla Airport and Kullu-Manali Airport. Kibber-Rangrik AGL has been surveyed, which Will be closest AGL to Chumar, Kaurik, and Tashigang-Shipki La disputed area, but as of July 2020 no progress has been made. Himachal Pradesh has a 250 km (160 mi) border with China. India has road up to the claimed border at Bakiala.
7 Tashigang-Shipki La
(Khab and Namgia)
Tibet Himachal Pradesh India
8 Jadh Ganga Valley
(also Mana Pass)
Tibet Uttrakhand India The valley of Jadh Ganga is claimed by China. The Indians control the whole extent of Jadh Ganga. Some of the villages in the area are Pulam Sumda, Sang, Jadhang, Nelang and Tirpani, which all lie in the valley of the Jadh Ganga.
9 Bara Hoti Tibet Uttrakhand India Chinyalisaur Airport primarily and Pithoragarh Airport secondarily serve Bara Hoti and Nelang-Pulam Sumda sectors as AGLs. ITBP has 42 BoPs (border outposts) in Bara Hoti sector and Mana Pass area (Pulam Sumda sector). Uttrakhand has a 350 km (220 mi) border with China. India is building roads in this sector, which will be completed by December 2020.
10 Part of Arunachal Pradesh (especially Tawang) Tibet Arunachal Pradesh India Tawang Air Force Station and AGLs at Aalo, Mechuka, Pasighat, Tuting, Vijoynagar, Walong and Ziro serve this sector. Most of India-controlled Arunachal Pradesh is also claimed by China, especially Tawang. See also 1987 Sino-Indian skirmish at Tawang.

Bhutan's Doklam area on Sikkim-China-Bhutan tri-junction, disputed by China in which Bhutan is assisted by India, has been kept out of this list, see also 2017 China–India border standoff at Doklam and Nathu La and Cho La clashes in Sikkim. India and China will hold the 9th round of military commander level talks on 24 January 2021, The talks will be held in Moldo opposite to the Chushul sector in India.

See also

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