What did the US hope to achieve in Vietnam?

Answer 1

The US involvement in the Vietnam War was to rule out and hopefully stop comunism from spreading in a dominoe effect.

Which were the plans of the North Vietnames, to further spread communism to South Vietnam.

Answer 2

As part of the plan to contain communism during the Cold War, the US sought to keep the capitalist South Vietnam from being taken over by the communist North Vietnam (an ally of China and the USSR). Doing so meant fighting the infiltrating North Vietnamese Army (NVA) and the Viet Cong guerrillas in the south. The fighting extended into the bordering countries of Laos and Cambodia. It also eventually meant attacking North Vietnam directly on a controversially limited basis.

Answer 3

US goals were to prevent the Republic of Vietnam (South) from being militarily conquered by the Communist North. The fear was that failure to stop Communist aggression in Vietnam would lead to it spreading to Cambodia, Laos, Thailand and eventually, the entire SE Asian region.

Answer 4

Preservation of the RVN (which would concurrently stop communist aggression).