They were part of the "Communist Bloc" countries allied with the Soviet Union.
The European countries which were taken into consideration to be "in the back of the Iron Curtain" were protected: Poland, Estearn Germany, Czechoslovakia, Hungary, Yugoslavia, Romania, Bulgaria, Albania, and the Soviet Union.
This 'Iron Curtain' divided the communist lands of East Europe from the West. by way of 1947, Greece and Czechoslovakia have been the only jap ECU countries not managed with the aid of communist governments. After WW2, Greece became threatened with the civil conflict between monarchists and communist revolutionaries.
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