The 7th Mechanized Corps was a mechanized corps of the Red Army, formed three times. The corps was first formed in 1934 in the Leningrad Military District and was converted into the 10th Tank Corps in 1938. The corps was reformed in the summer of 1940 in the Moscow Military District and fought in the Battle of Smolensk, after which its headquarters became part of Group Yartsevo's headquarters. The corps was formed a third time in August and September 1943. The third formation fought in the Dnieper–Carpathian Offensive, Uman–Botoșani Offensive, Second Jassy–Kishinev Offensive, Battle of Debrecen, Budapest Offensive, Bratislava–Brno Offensive, Prague Offensive, and the Soviet invasion of Manchuria. Postwar, the corps' third formation became a division and was disbanded in 1957.

The first Battle of Smolensk was a battle during the second phase of Operation Barbarossa, the Axis invasion of the Soviet Union, in World War II. It was fought around the city of Smolensk between 10 July and 10 September 1941, about 400 km (250 mi) west of Moscow. The Ostheer had advanced 500 km (310 mi) into the USSR in the 18 days after the invasion on 22 June 1941.