Little is known of Man O' War's life before his battle with Captain Atom. What is know is that he is bent of wiping Captain Atom and all his miserable race off the face of the Earth. Also in Man' O War's native tongue "Goodbye, Captain" translates to "BlkstBlgmfGlbrnklGLK", but it loses something in the translation.
Man O War was created by Keith "Angry Old Man" Giffen, and J.M. "Anything For a Buck" DeMatteis for there six issue series Formerly Known as the Justice League.
Major Story Arcs
Formerly Known as the Justice League
Man O' War is fighting Captain Atom, and winning, until L-Ron surprises both the hero and villain by tazing Man O' War from behind.