Comparing: Stuart I-IV vs. BT-7

Mass-produced from 1941 and supplied to the U.K. under Lend-Lease. A a total of 6,889 were supplied to the British from M3 to M5A1 variants. The M3 tanks were designated Stuart I by the British, while the M3A1 version was designated Stuart III. They first saw action in the battle at Sidi Rezegh.

The Soviet wheeled caterpillar tank used in the 1930s–1940s. The third vehicle in the series of the Soviet light BT tanks. The BT-7 differed from its predecessors in the welded hull of a modified shape and a new engine. A total of 5,556 vehicles of different variants were produced and saw action during the Khalkhyn Gol battles, Polish Campaign, Winter War and World War II.