There are two songs I can think of, both from the trenches as far as I know. Apologies if they come out a bit scrambled because I'm normally a 'lurker' at Mudcat and haven't yet worked out how to format lyrics or what will set the language-reject machine firing...

#1: I DON'T WANT TO JOIN THE ARMY
Tune: 'On Sunday I walk out with a soldier'

I don't want to join the army
I don't want to join the war
I'd rather hang around Piccadilly underground,
Living off the earnings of a high class lady.
I don't want a bayonet in my belly,
I don't want my b*ll**ks shot away.
I'd rather stay in England, in merry merry England,
And fornicate my bl***ing life away.

Can't remember the other verses to this one...

#2: BOMBED LAST NIGHT

Bombed last night, and bombed the night before.
Going to get bombed tonight if we never get bombed anymore.
When we're bombed, we're scared as we can be.
Can't stop the bombing from old Higher Germany.

They're warning us, they're warning us.
One shell hole for just the four of us.
Thank your lucky stars there are no more of us.
So one of us can fill it all alone.

Gassed last night, and gassed the night before.
Going to get gassed tonight if we never get gassed anymore.
When we're gassed, we're sick as we can be.
For phosgene and mustard gas is much too much for me.

They're killing us, they're killing us.
One respirator for the four of us.
Thank your lucky stars that we can all run fast.
So one of us can take it all alone.

HTML line breaks added. --JoeClone, 9-Jan-02.