yea, just imagine what might have happened if he didnt go to war with Russia
This is a mirage. I would recommend a book by Lew Besymenski. He tries hard to undermine the argument that the Soviet Union sought war with Germany. He, however, finds ample documentation to demonstrate that Stalin planned for war by 1942...and the preparations were well underway.
I have always wondered why Stalin liquidated military officers prior to 1939. His text answers why. Stalin thought that he could exert total control over the military, kill enough "potentially unpatriotic" people, and create a totally socialist military prior to 1942. But there is another aspect. Many Soviet officers worked closely together with the Germans according to the Rapallo agreements. (1922)
Technically, if we agree that the Soviets developed a military machine of frightening proportions, (and this is hardly dismissed by normal Cold War argumentation), then Hitler acted in a preventive manner.
We, however, know that Hitler disregarded the work of Gehlen and the other intelligence specialists that put the Soviet military figures far higher than those officially accepted by the German military. Hitler openly (as far as the available documentation tells us) thought that the Soviets were poorly equipped and poorly led. Nobody could have been this stupid.
I wonder about that last point. The German documentation clearly shows that they helped build the Soviet military during the 1920s, they helped design new models of tanks, etc., and worked towards an overall better military machine. Hitler, as leader, would have had access to this type of information. Overall, I find the nature of the discussion quite poor.
But this comment stands for most of WWII. I think that far too much "crap" is presented and passed off for reality.
(I only have the German version: Lew Besymenski, Stalin und Hitler:
Das Pokerspiel der Diktatoren, 2002).