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As part of the 11th Army, it took part in the Soviet invasion of Poland in 1939.
The Corps was recreated on November 20, 1941 on the basis of the Dovator Cavalry Group.
For its excellent performance behind the German lines, by order of the NPO No. 342 of November 26, 1941, the 3rd Cavalry Corps was transformed into the 2nd Guards Cavalry Corps, which fought during the rest of the war.