Strong, great message. don't be too stringent with correct english when writing a poem from somebodies point of view. People speak differently than the written word. Your first line could have read "Now, its not I've never gone to church,
Not great English, however this would have more likely have been said that way.
Great poem though.

Men at war, are given no fun. There's no time for merry at war. Peace, is what remains after war. Good job!