WORLD HISTORY

Detailed explanation-1: -Sometimes they are more generally referred to as “the countries of Eastern Europe under communism", excluding Mongolia, but including Yugoslavia and Albania which had both split with the Soviet Union by the 1960s. Even though Yugoslavia was a socialist country, it was not a member of the COMECON or the Warsaw Pact.

Detailed explanation-2: -The ideology of the Communist Party of the Soviet Union (CPSU) was Bolshevist Marxism–Leninism, an ideology of a centralised command economy with a vanguardist one-party state to realize the dictatorship of the proletariat.

Detailed explanation-3: -From its creation, the government in the Soviet Union was based on the one-party rule of the Communist Party (Bolsheviks).

Detailed explanation-4: -From 1945 to 1953, the USSR expanded its influence by creating the Eastern Bloc across states like Poland, Czechoslovakia, and Hungary. Stalin set up puppet communist governments that he could control. He repressed anyone who resisted.

Detailed explanation-5: -By the summer of 1990, all of the former communist regimes of Eastern Europe were replaced by democratically elected governments.

Detailed explanation-6: -Pravítelstvo SSSR, IPA: [prɐˈvʲitʲɪlʲstvə ɛs ɛs ɛs ˈɛr]), formally the All-Union Government of the Union of Soviet Socialist Republics, commonly abbreviated to Soviet Government, was the executive and administrative organ of state in the former Soviet Union.