The Prague Spring was a period of political liberalization and reform in Czechoslovakia that was abruptly ended by a Soviet-led invasion.
The Tet Offensive (1968) Explained
The Tet Offensive was a major military campaign during the Vietnam War in 1968, launched by the North Vietnamese and Viet Cong forces against South Vietnam and its allies.
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.