So, IOTL, there was a little revolution in Post-WWI Germany, that actually got pretty far along, at least from what I can tell, and kicked some ass, before petering out for a reason I cannot determine from the wiki page. So, what if, IATL, the Ruhr Red Army succeeds and establishes a Communist German Republic on the border of France and Germany? Now, I do not think it could last long, but even having an initial success that results in a short peace would have HUGE butterflies. If things got big enough, do you think France and the UK would let up on the Versailles restrictions for the sake of saving Europe from Communist overthrow?
The Soviets are probably a non-factor, as they are busy getting their ass kicked by the Poles, and can't do much.
The Soviets are probably a non-factor, as they are busy getting their ass kicked by the Poles, and can't do much.