In Czechoslovakia, The Ruler was a friend of the USSR, but he made reforms that the Warsaw Pact did not agree with, He attempted many libertarian reforms so the Warsaw pact with 500,000 troops invaded and put a more friendly government in place. In hungry their was a student protest, and the army fired into the crowd killing many people, so in response the people revolted, and the USSR feared that a successful revolt would put a friendly-US government in place, so the Warsaw Pact invaded and remade the government and crushed the revolt
Hungary and Czechoslovakia
The USSR invaded Hungary in 1956, Czechoslovakia in 1968, and Afghanistan in 1980.
When faced with opposition the USSR would always send in the tanks.
After WWII, Poland, Hungary, Czechoslovakia, Bulgaria, and Romania became the USSR's satellite states.
The USSR took over Czechoslovakia on August 20, 1968.
USSR, Albania, Bulgaria, Czechoslovakia, German Democratic Republic (East Germany), Hungary, Poland, Romania.
It was part of Czechoslovakia from 1919 until 1945, when the Soviet Union annexed it. Hungary had seized a large part of it in 1938, and held it until driven out by the USSR army.
All countries in Europe expect USSR, Romania, Poland, Bulgaria, Albania, Hungary, Czechoslovakia and East Germany were NOT communist.
Hungary was an Eastern Bloc country but never part of the USSR.
The satellite countries to the USSR in Eastern Europe included Eastern Germany, Poland, Czechoslovakia, Hungary, Romania, and Bulgaria.
Austria and Czechoslovakia. Possibly included are Romania, Bulgaria, Hungary, and Finland as they were forced to choose sides between Germany and the USSR, and they went with Germany.
At the end of World War 2, the Soviets either took or were given various countries. These included Czechoslovakia, Poland, and Hungary.