The Engineer's Hymn by Author Unknown
http://www.oneparticularharbor.net/sam/hymn.html
Next:
Hey, what's the use of singing this song, some of you are not even listening.
Tell me what it is we've got to do: wait for our fields to start glistening,
Wait for the bullets to start whistling.
Here comes a hydrogen bomb, here comes a guided missile,
Here comes a hydrogen bomb: I can almost hear its whistle.