Not necessarily anything that's 'period'... I'm looking more for contemp. songs dealing with the subject matter....

Sort of along the lines of
CHRISTMAS IN THE TRENCHES by John McCutcheon
Fire Of Calais by James Keelaghan
More Hallowed by Garnet Rogers
SAILOR'S REST (kinds) by Stan Rogers

I know there are others....

THE BAND PLAYED WALTZING MATILDA...