Most songs mentioned so far have been the commercial, well known and popular songs, usually from WWII (a very popular war, everyone got in on it). I'll bet there are plenty of songs made up by the troops in Vietnam which haven't seen the light of day - usually all we hear from that era are "The Ballad of the Green Berets" on the one hand and "The Fish Cheer" on the other. How about it, you Vietnam Vets? Can you give us something? And let's not forget Korea, too.