The Light and Darkness War Comic
A Vietnam vet is the only surviving member of his platoon. Twenty years after the war is over, he survived a car crash, a coma, and now Lazarus Jones has been transported to a universe reminiscent of a Moorcock novel. Naturally, his old platoon buddies are there, and they're fighting the forces of darkness. There's magic, aliens, and Leonardo Da Vinci has a supporting role.