The war in Iraq has generated a vast amount of commentary, popular and scholarly, on a broad range of topics. This note reviews literature on three issues of particularly great moral significance that have arisen from the experience of U.S. military action in Iraq. There is the jus ad bellum question of the legitimacy of preventive war, the jus in bello matter of the treatment of detainees, and the jus post bellum concern of the responsibilities of occupiers.