What you got wrong, is a thing called "Duty". You don't know the meaning of the word, of course, but some of us do. Get this straight; soldiers don't start wars; none of us got to pick and choose which wars we would or would not fight. We took an oath, and we obeyed it, because that is what soldiers do; they trust their superiors to make the right choices for them, and then they live (and die) according to those choices. It does not become a soldier (officers included) to question the order of a superior unless the order is flagrantly and unquestionably unlawful on its face. Anything else, is obeyed now, and reported later.
See, I don't trust the government. I'll make my own decision about whether a war is worth fighting or not. I understand that once i sign up, I do what I'm told because that's how you stay organized. Mindless group think is a necessary evil of war. But that's no reason to glorify mindless group think.
Millions and millions in Vietnam and Cambodia were slaughtered when we left Vietnam. Thank you leftist you must be proud.