The US and North Vietnam .
Vietnam and Laos. Vietnam and Laos. Vietnam and Laos. Vietnam and Laos.
The fight against the spread of Communism.
The Soviet Union (USSR) supplied North Vietnam, and the US fought for South Vietnam.
The countries that were actually "physically" involved, and were bombed or had US aircraft crash into them, whether they were "officially" in the war or not, were: Lao's, Cambodia, North Vietnam and South Vietnam.
Nobody knows. Too bad.
Cambodia was neutral.
North Vietnam and South Vietnam. Also, to name just a few: the USA, China, Russia, South Korea, Australia, France, and England. A great many countries fought in the Vietnam War from 1945 to 1975.
to keep indochina from going communist. It was part of the domino theory
korea, united states, ussr, vietnam, and germany?
Red China, North Korea, Cuba, and of course North Vietnam & for the other side, France, UK, Canada, etc.
France,United states of america,and vietnam no other countries because noone knew about it exept france and the U.S.A