Confrontation in international relations in October 1962 when Soviet rockets were installed in Cuba and US president John F Kennedy compelled Soviet leader Nikita Khrushchev, by military threats and negotiation, to remove them.
In the Vietnam War, a massacre of Vietnamese civilians by U.S. soldiers. On Mar. 16, 1968, a unit of the U.S. army Americal division, led by Lt. William L. Calley, invaded the South Vietnamese hamlet of My Lai (more correctly, Son My), an alleged Viet Cong stronghold.
War from 1954 to 1975 between communist North Vietnam and US-backed South Vietnam, in which North Vietnam aimed to conquer South Vietnam and unite the country as a communist state; North Vietnam was supported by communist rebels from South Vietnam, the Vietcong.
Demonstrations, marches, and acts of civil disobedience in protest to US involvement in the Vietnam War (1954–75), beginning around 1965. Anti-war sentiment arose from the question of the morality of participation in what many regarded as a civil war; the growing human and environmental costs; and doubts that the US war effort would succeed.
German founder of modern communism, in England from 1849; With Engels, he wrote The Communist Manifesto (1848). He developed his theories of the class struggle and the economics of capitalism in Das Kapital (1867; 1885; 1895). He was one of the founders of the International Workingmen's Association (First International) (1864).
Military defensive alliance 1955-91 between the USSR and East European communist states, originally established as a response to the admission of West Germany into NATO. Its military structures and agreements were dismantled early in 1991; a political organization remained until the alliance was officially dissolved in July 1991.