You’ve probably already seen my #32, but if not, take a look. Clearly we’re on the same page regarding the history. It’s amazing how ignorant most are about this.
Yeah, you’re #32 is completely accurate. The cutoff of ammo, gas and parts sealed South Vietnam’s doom.
My difference with some other posters on this thread is whether that alone was why South Vietnam was conquered. The JCS had warned Johnson as early as 1964 that we either had to go in extremely heavy or stay out. Johnson wanted half-measures that gave the appearance that we were doing something but wouldn’t win the war. He didn’t care about that, it was all about perceptions and he was willing to sacrifice the lives of American GIs to that end. Nixon inherited a doomed strategy and his decision was to slowly extricate us.
Kennedy should have drawn the line in Laos back in 1962, but he was too feckless to do it. That would have kept the center of gravity outside of South Vietnam and in a place where we could have brought our superior military power to bear.