At least six other nations.
The US controlled the allied portion of the war; Hanoi controlled their side.
America was defending Vietnam.
USSR/Red China supplied North Vietnam with weapons/equipment.
No. World War 2 was a war between the Allied countries and Germany. Vietnam was between the United States and Vietnam. Both wars also occurred during different times.
Italy and Germany were allied to Japan during WWII.
Great Britain and France
The allied powers were North America and Britain.
Korea, Australia, Phillipines, and Canada all pitched in during the Vietnam war alongside the U.S. effort to preserve democracy in South Vietnam.
The austro hungarians allied with germany.
There were about 26 countries during WWI.
The five other countries allied with Great Britain during WWI were France, Russia, Italy, USA, and Serbia.
The four main countries that made up the allied power during WW2 were Russia, United States, China, and Britain.
US allies were South Korea, Australia, New Zealand, Thailand, Philippines, and the Republic of South Vietnam.
Vietnam and Korea.
Yes. In fact both countries had combat troops helping South Vietnam during the Vietnam war.
Red China/USSR supplied North Vietnam with material & South Vietnamese guerrillas called the Viet Cong supplied guerrillas in the fighting in South Vietnam. The US, Australia, New Zealand, S. Korea, S. Vietnam, Philippines, and Thailand supplied troops for the allied side during the war.
To defeat the axis countries.
generally, on the sides of the countries they were colonies of
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.