Or things to gripe about at least lol…sore backs and sore feet are timeless.
Or, in the case of enlisted men, griping about their NCOs. In the 1943 movie Sahara, Humphrey Bogart plays a tough, no-nonsense (and occasionally sarcastic) US Army sergeant who’s in command of an American tank in North Africa. Early in the movie, while proceeding alone across the desert following a hard-fought action, Bogie’s tank picks up an assorted handful of Allied soldiers from a bombed British field hospital: an Englishman, a South African, a British Sudanese, a Free Frenchman, and so forth. A bit later, two of the enlisted men who are riding on the hull of the tank are having a shouted conversation (because of the noise of the tank engine), and if I recall correctly one of them grumbles, “Why is it that a sergeant is always the same no matter what army you’re in?”