>>11705872The Soviets trained about 3 or 4 mn paratroopers by 1941, which are only used for the offensive.
Germany had less than 500. The Soviets had more tanks than Germany and they had heavy tanks, which Germany introduced only in 1943 or so.
The Soviets didn't prepare for a defense and Hitler struck where it hurts. Were it a Soviet offense, they were planning to finish the job Hitler didn't, to invade Britain via amphibious tanks.