First Indochina War (1946-1954)
"...fought between France and Việt Minh (Democratic Republic of Vietnam), and their respective allies... the conflict engulfed [Vietnam] and also extended into the neighboring French Indochina protectorates of Laos and Cambodia." (Wikipedia: First Indochina War, 6.5.25 UTC 11:07)
Second Indochina War (1955-1975) - Vietnam War
"North Vietnam was supported by the Soviet Union and China, while South Vietnam was supported by the United States and other anti-communist nations.... Vietnam gained independence in the 1954 Geneva Conference but was divided in two at the 17th parallel." (Wikipedia: Vietnam War, 6.20.25 UTC 20:24)
Third Indochina War (1978-1991)
"The conflict primarily started due to continued raids and incursions by the Khmer Rouge into Vietnamese territory that they sought to retake. These incursions would result in the Cambodian-Vietnamese War in which the newly unified Vietnam overthrew the Pol Pot regime and the Khmer Rouge, in turn ending the Cambodian genocide... China strongly objected to the invasion of Cambodia... [and] launched a punitive operation (Sino-Vietnamese War) in February 1979..." (Wikipedia: Third Indochina War, 6.11.25 UTC 15:58)
