Oh, that's full of possibilities. If it had been written back in 1966, I don't think Stan had any idea what was really going on in Viet Nam, and he'd write it like another WW II story. But if it was written today and set back then, there could be a powerful series there. I can particularly see Peter after his discharge, trying to adjust both to civilian life and to crime-fighting without using lethal force all the time.
Maybe Captain America would find out and try to help, only to be rebuffed ("You don't understand, Cap. You weren't there, you don't know what we had to do.")