Who supported the Vietnam war?
Red China/USSR supported the North, US supported the South.
If you're referring to the Vietnam War, then the war was mainly fought between North Vietnam and South Vietnam. North Vietnam was communist, and was supported by the Soviet Union, China, and Cuba. South Vietnam was capitalist, and was supported by the United States, Australia, the Philippines, and South Korea. Vietnam was also invaded and conquered, then colonized, by France in the 1800s.
Unfortunately, before the Vietnam War, as you know it, Vietnam was still embroiled in war. Another words, before the Vietnam War, there already was another war in Vietnam...the 1st Indochina War (also called the French War). And before the French War was the Japanese occupation during WWII...which was a guerrilla war fought against Imperial Japanese occupation forces (supported by the US/Allies).
During the Vietnam and till 1975 Vietnam was divided in two parts. North Vietnam and South Vietnam. Government in South was supported by USA and was not socialist in nature. Majority of population in South supported US led war effort but population of North Vietnam was much larger than South and stood firmly behind Ho Chi Minh and his forces in war against USA.
It was actually a sort of civil war between (in very general terms) the Northern and Southern portions of Vietnam. The Northerners wanted communist government and were supported by Red China. The Southerners wanted a democratic government and were supported by the French and then the Americans, with some support from other democracies. The Vietnam war was not a civil war. What the Vietnamese people wanted was a free Vietnam without colonial rule. It was…