> But if the objective of the USA was to prevent a domino of communism taking over all of South-East Asia, we can pretty clearly see where the advance of commun

> But if the objective of the USA was to prevent a domino of communism taking over all of South-East Asia, we can pretty clearly see where the advance of communism was stopped. But Communism flourished in Vietnam. So if you want to argue domino theory (which was wrong anyways), they certainly didn't stop the Vietnamese domino. So they didn't win in Vietnam.