On Lili Marlene: I'm only 18 and this was one of the songs I learned when I had singing lessons. It's one of my favourite songs. Don't care if it's from a male perspective (I love singing songs from male perspectives anyway. One of my other favourite songs is "The Riff Song", from The Desert Song, which is also meant to be sung by men as a group number and basically says "We are the most awesome guerrillas ever! The French have NO chance!") This song, IMO, is one of the best songs about love during wartime.

BTW, I always assumed that L.M. was a camp follower, although not necessarily in the sense most people would think of when they hear the phrase, as well as the narrator's girlfriend. Maybe she followed the camp to be near him.