The specific personal legacy I referenced was
1) gung ho
2) RA
During the Vietnam Era, RA refers of course to Regular Army as differentiated from the US prefix designation of draftee, ie, United States, each of which was the enlisted identifying prefix code to the unique service serial number. So that's RA xxx-xx-xxx or US xxx-xx-xxx.
I was not any of the three: RA or US which were formal nor was I the informal gung ho. While The Old Guard was most agreeable to me, and I to it, I do not consider myself to have been 'gung ho' about protecting the Potus and the national capital which is a profession rather than a high.
Dave ignores my inquiries and probing, refusing for instance to respond to my specific boilerplate question of whether he made (buck) sergeant E-5 during his tour, which rank/grade we know is three down and none across. So I have to conclude Dave was 11B, or one-one-bee which is light weapons infantry enlisted, while the officer designation of same is 11A. Then there's the serial number and prefix RA or US or O indicating Officer (O-1 indicates as you know well 2LT, up to O-10 which too is 4-star officer, your having retired as a Fleet Marine Staff Gunny and all (E-7) after 20.
So in sum Gunny I specifically identified whose legacy the VN War is -- and it ain't a good one izzit. As in forever I'm afraid, and it is the legacy of Dave and the other Nixon voters, supporters, diehards -- civilian and military -- till the double barreled bitter end for 'em and of 'em. This includes those who would have voted for Nixon in '68 and '72 but were too young, your having retired in 1999 as I recall you saying.