Who cares about the exact breed of government dog?

I do.

I don't know or care which specific branch he went to. The point I make is that he had to enlist as a way out and to fund his studies, he wasn't some dude born with a silver spoon.

Don't care about the distinction between them either, or their subdivisions. Most of the times I call all of it "the army" (as in armed forces) anyway, chalk it to dyslexia if you wish.

That's not how I've heard him tell it.

You're triggered and having a tantrum because somebody confused two branches of the military in a way that had no impact to the substance of conversation?

That is not conversing in good faith, and is against the rules of the forum. Please try to do better.