Comparing: Cruiser Mk. IV vs. Pz.Kpfw. 38 (t) vs. BT-SV

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.

Developed by the ČKD company for the Czechoslovakian Army in 1938. During the German occupation, the vehicle saw service in the Wehrmacht and was used in the Polish and French Campaigns, as well as on the Eastern Front. The tank saw combat on the front line until the middle of 1942. Approximately 1,400 vehicles in eight modifications (Ausf. A/B/C/D/E/F/S/G) were manufactured.

Experimental tank. Developed by the Tsyganov group from 1936 through 1938. The vehicle underwent field trials, but never saw service.