French Indochina: A colonial entity established by France in the mid-19th century, comprising Vietnam, Laos, and Cambodia, which played a significant role in the region's history and its struggle for independence.
Vietnam War:A prolonged conflict from 1955 to 1975 involving North Vietnam and its communist allies against South Vietnam and its principal ally, the United States, resulting in widespread destruction and loss of life.
Khmer Rouge:A radical communist movement that ruled Cambodia from 1975 to 1979 under Pol Pot, known for its brutal policies leading to the Cambodian genocide and mass atrocities against the population.