Ian, I'd like to say something different, but all I can do is throw in my vote for both Christmas in the Trenches and 1913 Massacre(e). Both are really great and if you can sing Christmas in the Trenches without a few tears being shed, including your own, you're a better man than I am Gunga Din! Hard hitting? Man, it's hard to beat this:

Than daylight stole upon us and France was France once more
With sad farewells we each prepared to settle back to war
But the question haunted every heart that lived that wonderous night
"Whose family have I fixed within my sights?"

OR

But the ones who call the shots won't be among the dead and lame
And on each end of the rifle we're the same.

Geeziz.....It just doesn't get any stronger than that. A really exquisite piece of work.

Spaw