Like Vito I never heard of challenge coins when I served ( 71-77). Perhaps they became a thing later.
My kids have them and according to them "play the game". Among those they served with it was a sort of one upmanship. Who ever had the lowest ranking coin bought the booze. All in good fun.
My kids have them and according to them "play the game". Among those they served with it was a sort of one upmanship. Who ever had the lowest ranking coin bought the booze. All in good fun.