During the Vietnam War the argument made beginning in 1968 was that we would lose because we would quit—we didn’t have their “staying power”—and yet we lost because and only because we quit. The task was to convert the war from an unconventional war, which we were supposedly bad at, to a conventional war, which we excelled at, since that type of war rewarded precisely what we were good at: logistics, organization, and material superiority.
Gen. Creighton Abrams did that. The war that was lost was a conventional war. This is incontrovertible historical fact.