Think of it this way, blazer. If you lived in national socialist Germany and then the national socialists lose the area that you are living in to the communist Soviets, then the war suddenly stops and you still feel nationalism, would you really want to stay with he communists unless you were some moron commie anyway? Given that the only differences here are location, time period, and the fact that Abdullahi is a heck of a lot less impressive than the Soviet Union, this is almost exactly what happened.
Plus, given that Yaslovakia was basically national socialist Germany, they hate/fear communism as much as Riddler or Blue Meanie, or Hirohito, or Franco did. If I were Yaslovakia, I would leave nothing for the communists too.