The problem is that because of Communism being imposed on the Eastern Satellites, they never really recovered from WWII (no Marshall Plan for them). So in reality, these nations are still transitioning from the end of WWII, as well as from the end of communism.
I'm suprised that a good number of the Commie lackies in the former occupied countries weren't put against a wall and shot. Maybe the rest didn't want to reduce the total population by 10%. I wonder how many have just disappeared or been found slain.