Operation Iraqi Freedom accomplished a long-standing objective, the overthrow and capture of Saddam Hussein, but replacing that regime with a stable, moderate, democratic political structure has run into difficulty. Past U.S. efforts to change the regime failed because of limited U.S. commitment, disorganization of the Iraqi opposition, and the efficiency and ruthlessness of Iraq’s several overlapping security services. Previous U.S. Administrations had ruled out major U.S. military action to change Iraq’s regime, believing such action would be risky and not necessarily justified by the level of Iraq’s lack of compliance on WMD disarmament.