The Vietnam War which lasted for almost twenty years, was a war that happened in three countries; Vietnam, Laos and Cambodia. The war, also known as the Second Indochina War was fought between North and South Vietnam.
The North Vietnamese army had the support of the Soviet Union, China and other communist states, while the South Vietnam had the support of the United States, Australia, Thailand, South Korea and other anti-communist countries.
The war was long and dirty and many people suffered. Here are the pictures that many people have never seen of the Vietnam war.