Dear John, what was it like filming 'How I Won the War'?

Dear You-You-You ,
It was a very interesting experience since it was one of the first times I had branched out from the Beatles. I was working with a lot of great actors, and the whole movie was just one big laugh! It was so much fun to mock war like that! I think it needs to be mocked more often, don't you?
Peace and love,