One of the odd things about the Vietnam war for American servicemen was that you could be way the hell in-country, scared out of your mind, and yet you could come back after patrol to a camp where guys had rigged up major sound systems bought at the PX back in wherever by who knows who. This is one of the hits:
Herbie Mann, Battle Hymn of the Republic
When you run into a Vietnam era guy on the street clearly having a rough time, consider that the last part of this song could be what’s going through his head. Not his fault. Our responsibility. Shamefully shirked. Glory glory...