Comparing: Cruiser Mk. IV vs. M3 Light vs. T-127

An upgraded version of the cruiser tank Mk. III. The tank featured armor enhanced by the additional screens. The Cruiser Mk. IV fought in France in 1940 and in the early stages of the North African Campaign. This vehicle last saw action in the winter of 1941–1942. A total of 655 tanks were mass-produced.

The most famous light tank of World War II, with a total of 13,859 vehicles manufactured from 1941 through September 1943. 1,576 tanks (mostly of the M3A1 version) were supplied to the U.S.S.R. under Lend-Lease, and many more to the British.

Developed together with the T-126 at Factory No. 174 during the summer of 1940. Vehicle development was suspended during the preliminary design phase and then discontinued due to problems with the V-3 diesel engine.