what happened to most eastern european countries after ww2
Flight and expulsion of Germans (1944–50) The Second World War ended in Europe with Germany's defeat in May 1945. By this time, all of Eastern and much of Central Europe was under Soviet occupation. This included most of the historical German settlement areas, as well as the Soviet occupation zone in eastern Germany.
Eastern Front (World War I) The Eastern Front or Eastern Theater of World War I (Russian: Восточный фронт, Vostochnıy front, sometimes called the "Second Fatherland War" or "Second Patriotic War" (Russian: Вторая Отечественная война, Vtoraya Otechestvennaya voyna) in Russian sources)[16] was a theatre of operations that encompassed at its greatest extent the entire frontier between the Russian Empire and Romania on one side and the Austro-Hungarian Empire, Bulgaria, the Ottoman Empire and the German Empire on the other. It stretched from the Baltic Sea in the north to the Black Sea in the south, included most of Eastern Europe and stretched deep into Central Europe as well. The term contrasts with "Western Front", which was being fought in Belgium and France.