The major countries involved in the Vietnam War include Japan, France, Vietnam, and the US.
North Vietnam won the war.
After the war, there was a reunification of Vietnam. So the answer is "One country".
North Vietnam and South Vietnam
Vietnam , America , and Russia
China was one.
The Vietnam War was part of the cold war. The cold war was between governments (Nations/Countries).
North Vietnam won them.
North Vietnam/VC vs allies
The US , North and 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.
The Soviet Union (USSR) supplied North Vietnam, and the US fought for South Vietnam.
North Vietnam, China, USSR.
united both countries under one flag.
Vietnam was split into two countries during the vietnam war, the north was ruled by Ho Chi Minh and the South by Ngo Diem.
Two nations (countries) (with their allies) were at war with each other in Vietnam. No nations are at war with Afghanistan.
Laos and Cambodia were both drawn into the Vietnam War because of atrocities the people of these two countries suffered under the hands of North Vietnam. South Vietnam and other countries were trying to keep the North Vietnamese army from spreading Communism in these countries.
As in most war torn countries, they adapted to it.
Washington was at war with Hanoi.
If Vietnam went, then the neighboring countries would be next.
south Korea south Vietnam japan
China, France, Japan...then the Vietnam War involving the US.
China, Russia, and later Cuba.
Two separate countries: South Vietnam was officially called RVN (Republic of South Vietnam). When US servicemen landed in country, they were greeted with "Welcome to the Republic of South Vietnam" (enjoy your stay).