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.
Vietnam , America , and Russia
The Vietnam War was part of the cold war. The cold war was between governments (Nations/Countries).
North Vietnam/VC vs allies
North Vietnam won them.
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.
There were many political actions that resulted from opposition to the Vietnam War. These included political protest rallies and desertion to other countries.
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.
The Korean War 1950-1953, WWII 1941(1939)-1945, WWI (1914-1918) had far more countries involved than did the Vietnam War. The few countries that helped the US (Australia, New Zealand, Philippines, Thailand, South Korea, and the host country of South Vietnam) did so because we asked for their help.
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.