The 6th Rifle Corps (Russian: 6-й стрелковый корпус) was a rifle corps of the Soviet Union's Red Army and later the Soviet Army, formed three different times. The corps was first formed in 1922, and spent most of the interwar period headquartered at Odessa. It fought in the Soviet invasion of Poland in September 1939, moving into what became western Ukraine. Stationed on the border when Operation Barbarossa, the German invasion of the Soviet Union, began on 22 June 1941, the corps was destroyed in the first weeks of the war. Reformed in mid-1942, the corps' second formation was converted into the in April 1943. The corps' third formation was formed in May of that year, and fought in the Continuation War. Postwar it was relocated to the North Caucasus, renamed the 6th Army Corps in 1957 be