Because the war couldn't be isolated (Ho Chi Minh Trail) without expanding the war into other countries (Laos & Cambodia), and possibly involving the communist superpowers (USSR & Red China)...which "DID" happen during the Korean War (1950-1953). The Korean War occurred on a peninsula; which allowed the US to isolate the war to only that one region.
Chat with our AI personalities
Let them take the place; they were working on it anyway.
They did take place
Same as it's been since '54; Hanoi
The Vietnam War.
To prevent the communist take over of the NON-communist Republic of South Vietnam, by Communist NORTH Vietnam.