KV-2 - Soviet heavy assault tank the initial period of the Great Patriotic War. Abbreviation HF means "Kliment Voroshilov" - the official name of the series of Soviet heavy tanks release 1939-1943 was named after the hero of the Russian Civil War, military and politician Kliment Voroshilov.. Originally it called "HF with a big tower."

This machine was developed by the design bureau of the Leningrad Kirov Plant (LB) in January 1940 in connection with the urgent need of the Workers 'and Peasants' Red Army (Red Army) in a well protected tank with powerful weapons to fight the fortifications of the Mannerheim Line during the Soviet-Finnish war of 1939 1940.