Comparing: BDR G1 B vs. Churchill III vs. KV-1

The project of a new vehicle was suggested by engineers of the Baudet-Donon-Rousell company in June 1938. However, the design was never developed.

A British tank supplied to the U.S.S.R. under Lend-Lease. The U.S.S.R. received a total of 301 vehicles, with some lost at sea during transport to Murmansk.

Development started at the end of 1938. A prototype was produced in August 1939. The vehicle first saw combat in December 1939 at the Mannerheim Line. The tank was mass-produced from March 1940 through August 1942, with a total of 2,769 vehicles manufactured.