Bless 'em All
D-Day Dodgers and/or it's parent Lili Marlene
Various parodies on Colonel Bogey
When They Sound the Last All Clear
Follow the white line
Lionel Bart had some good songs in his musical "Blitz" The only one that come to mind at the moment though is "Duty Calls"
George Formby did dozens, Again I can't recall any specific ones but a web search might find them.

Bert.