Therefore, speaking about the shortcomings and providing military equipment of the Armed Forces, it is impossible not to talk about what has been done. Even the fact that the beginning of the war we were not fully formed mechanized corps, the author explains the belated deployment of our tank industry and mass production of medium and heavy tanks. But mechanized corps began to form only in June 1940. And it was created by the end of year 9 buildings, and in the beginning of 1941 unfolded formation of 20 more mechanized corps. To ensure their required more than 32 thousand tanks, including more than 16 thousand new types of tanks. It is quite clear that such formation can not be carried out within one year, that our industry is not able to put the beginning of the war a number of tanks at all times.