Vietnam wins U.S. defense pledges as tension with China grows I was just a kid during the end of the Vietnam "war" so what I know of it is based on documentaries. The picture I've always walked away with was we were the good guys and the North Vietnamese and their Viet Cong contingent were the bad guys - communists and what not. In the back of my head, I never could understand why they were the bad guys - after all, what do we care what form of government they had? And if you take a close look, it was the South Vietnamese that had rampant corruption. And they were, from what I can gather, not nearly committed to the cause of their own independence.