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Operation Castor
Part of First Indochina War
French Union paratroops dropping from a C-119 over Battle of Dien Bien Phu
Date 20–22 November 1953 Location Dien Bien Phu, Vietnam Result Viet Minh defeat Successful French establishment of the Dien Bien Phu outpost
Belligerents
French Union France, State of Vietnam	Viet Minh
Commanders and leaders
Jean Gilles Jean Dechaux Henri Navarre	Vo Nguyen Giap
Strength
4,195 (as of 22 November)	One infantry battalion and one artillery battery
Casualties and losses
As of 20 November: 16 killed, 47 wounded	French est (As of 20 November): 115 killed, 4 wounded (POW)

Opération Castor was a French airborne operation in the First Indochina War. The operation established a fortified airhead in Điện Biên Province, in the north-west corner of Vietnam. Commanded by Brigadier General Jean Gilles, Castor was the largest airborne operation since World War II. The Operation began at 10:35 on 20 November 1953, with reinforcements dropped over the following two days. With all its objectives achieved, the operation ended on 22 November.

Execution

The French paratroopers of the 6 Bataillon de Parachutistes Coloniaux (6 BPC) and the 2nd Battalion of the 1 Régiment de Chasseurs Parachutistes (II/1er RCP) dropped over Dien Bien Phu on the first day in order to secure the airstrip built by the Japanese during the occupation of French Indochina by Japan from 1940 to 1945. The operation took 65 of the 70 operational C-47 Dakota and all 12 C-119 Flying Boxcar transport aircraft the French had in the area, and still required two trips to get the lead elements into the valley. Also dropped in the first wave were elements of the 17 Régiment de Génie Parachutiste (RGP) ("17th Airborne Engineers Regiment") and the Headquarters group of Groupement Aéroporté 1 (GAP 1), ("Airborne Group 1"). They were followed later in the afternoon by the 1 Bataillon de Parachutistes Coloniaux (1 BPC) and elements of 35 Régiment d'Artillerie Légère Parachutiste (35 RALP) and other combat support elements. Just after its landing, the 6 BPC ran into contact with the Viet Minh 910th Battalion, 148th Regiment, which was conducting field exercise in the area along with a battery from the 351st Artillery Division and an infantry company of the 320th Division. Fighting persisted until afternoon when the Viet Minh units eventually withdrew to the south.

The following day, the second airborne group, "GAP 2" – consisting of 1 Bataillon Etranger de Parachutistes (1 BEP), 8 Bataillon de Parachutistes de Choc (8 BPC), other combat support elements and the entire command and Headquarters group for the Dien Bien Phu operation under Brigadier General Jean Gilles – was dropped in. While on another drop zone, the heavy equipment came down and the engineers quickly set about repairing and lengthening the airstrip.

On 22 November, the last troops of the initial garrison, the 5 Bataillon de Parachutistes Vietnamiens ("Battalion of Vietnamese Parachutists", 5 BPVN), jumped into the valley. In the same "stick" as the commander of 5 BPVN was Brigitte Friang, a woman war correspondent with a military parachutist diploma, and five combat jumps. General Navarre created the outpost to draw the Viet Minh into fighting a pitched battle. That battle, the Battle of Dien Bien Phu, occurred four months after Operation Castor.

French order of battle

Aeroportable Division Element (Template:Lang-fr):

• Groupement Aéroporté 1 (GAP 1), (Airborne Group 1)

• GAP 1 Headquarters staff
• 1 Bataillon de Parachutistes Coloniaux (1 BPC) (Colonial Parachute Battalion)
• 6ème Bataillon de Parachutistes Coloniaux (6 BPC) (Colonial Parachute Battalion)
• 2ème Bataillon, 1 Régiment de Chasseurs Parachutistes (II/1 RCP) (Light Infantry Parachute Regiment)
• 17 Régiment de Génie Parachutiste (RGP) (Airborne Engineers Regiment)
• 35 Régiment d'Artillerie Légère Parachutistes (35 RALP) (Light Artillery Parachute Regiment)

• Groupement Aéroporté 2 (GAP 2), (Airborne Group 2)

• 1 Bataillon Etranger de Parachutistes (1 B.E.P) (Foreign Parachute Battalion)
• 8 Bataillon de Parachutistes de Choc (8 B.P.C) (Parachute Assault Battalion)
• 5 Bataillon de Parachutistes Vietnamiens (5 B.P.V.N) (Vietnamese Parachute Battalion)

• 1st Foreign Parachute Heavy Mortar Company

Notes

1. DienBienPhu.org
2. Some English sources erroneously translate the name of operation into the English "Beaver". However the name of the second operation (the evacuation of Lai Châu), which took place weeks later, "Pollux"; clearly indicates that this is an error and both names refer to mythological twins Castor and Pollux. Fall, Bernard B. (2002). "Notes". Hell in a very small place: the siege of Dien Bien Phu. New York, N.Y.: Da Capo Press. p. 467. ISBN 0-306-81157-X.
3. Fall, 138.

Sources

• Chen Jian. 1993. "China and the First Indo-China War, 1950-54", The China Quarterly, No. 133. (Mar., 1993), pp 85–110. London: School of Oriental and African Studies.
• Cogan, Charles G. 2000. "L'attitude des États-Unis à l'égard de la guerre d'Indochine" in Vaïsse (2000: 51–88).
• Davidson, Phillip. 1988. Vietnam at War: The History, 1946-1975. New York: Oxford University Press. ISBN 0-19-506792-4
• Fall, Barnard. 2005. Street Without Joy. Barnsley: Pen & Sword Military. ISBN 978-1-84415-318-3
• Farrell, Ryan F. 1991. "Airlift's role at Dien Bien Phu and Khe Sanh". Global Security website. Retrieved: February 19, 2008.
• Friang, Brigitte. 1958. Parachutes and Petticoats. London: Jarrolds.
• Giap, Vo Nguyen. 1971. The Military Art of People's War. New York & London: Modern Reader. ISBN 0-85345-193-1
• Navarre, Henri. 1956. Agonie de l'Indochine. Paris: Librairie Plon. ISBN 978-2-87027-810-9
• Simpson, Howard R. 1994. Dien Bien Phu: The Epic Battle America Forgot. London: Brassey's. ISBN 978-1-57488-024-3
• Vaïsse, Maurice (editor). 2000. L'Armée française dans la guerre d'Indochine (1946–1954). Paris: Editions Complexe.
• Windrow, Martin. 1998. The French Indochina War, 1946-1954, Osprey. ISBN 1-85532-789-9
• Windrow, Martin. 2004. The Last Valley. Weidenfeld and Nicolson. ISBN 0-306-81386-6

External links

• Operation Castor at DienBienPhu.org
• French ambassador honors U.S. pilots at Castor and Dien Bien Phu, Feb. 25, 2005

• Battles and operations of the First Indochina War
• 1953 in France
• 1953 in Vietnam
• Battles involving Vietnam
• Military operations involving France