USA HISTORY

Detailed explanation-1: -It was nominally fought between North Vietnam and South Vietnam. North Vietnam was supported by the Soviet Union, China, and other communist allies; South Vietnam was supported by the United States, South Korea, the Philippines, Australia, Thailand, and other anti-communist allies.

Detailed explanation-2: -The Vietnam War was a long, costly and divisive conflict that pitted the communist government of North Vietnam against South Vietnam and its principal ally, the United States. The conflict was intensified by the ongoing Cold War between the United States and the Soviet Union.

Detailed explanation-3: -The north was supported by the Soviet Union, China, and other communist states, while the south was supported by the United States and other anti-communist allies. The war is widely considered to be a Cold War-era proxy war. It lasted almost 20 years, with direct U.S. involvement ending in 1973.

Detailed explanation-4: -The Democratic Republic of Vietnam (DRV) in the north was supported by the Soviet Union, China, and other communist countries, while the United States and its anticommunist allies backed the Republic of Vietnam (ROV) in the south.