The second Indochina war, the Vietnam War (in America) and the American War (in Vietnam), took place between 1957 and 1975. The war was fought in South Vietnam, and bordering areas of Cambodia and Laos.
In the South, the Republic of Vietnam's allies were the United States, South Korea, Thailand, Australia, New Zealand, and the Philippines. The North Vietnam army, the Viet Cong, was military and financially supported by former USSR.
In 1973, U.S. involvement in Vietnam finally ends, with 50,000 American losses. 5 million Vietnamese, 4 million civilians, died in the conflict. On April 30th, Saigon falls to North Vietnam and becomes Ho Chi Minh City.