The Brezhnev Doctrine was a Soviet foreign policy that asserted the right to intervene militarily in any socialist country that deviated from the principles of communism.
The Prague Spring (1968) Explained
The Prague Spring was a period of political liberalization and reform in Czechoslovakia that was abruptly ended by a Soviet-led invasion.
The Warsaw Pact (1955) Explained
The Warsaw Pact was a military alliance formed by the Soviet Union and its Eastern European satellite states in response to the creation of NATO.
Warsaw Pact invasion of Czechoslovakia Explained
The Warsaw Pact invasion of Czechoslovakia was a military intervention by Soviet-led forces to suppress the Prague Spring reforms in 1968.