Although one of the key justifications for the Vietnam war was to prevent the spread of communism, the U.S. defeat was to produce nothing of the kind:

Although one of the key justifications for the Vietnam war was to prevent the spread of communism, the U.S. defeat was to produce nothing of the kind: apart from the fact that Cambodia and Laos became embroiled, the effects were essentially confined to Vietnam.

– Martin Jacques

Martin Jacques Quotes