Sir, Having spent the biggest part of my life accompanying my husband, who proudly served over 30 years as an officer in the Navy and USAF (all active duty) from base to base in many parts of the world, I think I can rightfully claim to know just a little about the military thankyou!
Which addresses your response, which did not address mine:
During Vietnam MOST members of the services were either draftees or joined a branch they wanted to be in rather than being drafted into Army Infantry.
Pretty simple circumstances back then.
What I said and you seem to have missed was that a LOT of those draftees stayed in because they learned there was something more to soldering than they'd been told. Others stayed in because they got nice jobs in procurement or other support and the pay was good.
Although I got out after seven years (for all the wrong reasons) I'm totally in favor of the former and try to remain neutral toward the latter.
Happy new year and note that, other than schools, I spent only one of those years stationed in CONUS.
(All that said, being Army in the years after Vietnam was not the happiest of careers, I expect Marines remained on the short end as well.)