This chapter discusses political developments in Iraq following the US and UK's military campaign in 2003. The publicly stated reason for the invasion of Iraq was Saddam's possession of weapons of mass destruction and his links with international Islamist terrorists. However, is probably more likely that from the very beginning the Bush Administration, or more precisely influential elements within it, made the removal of Saddam Husayn a central plank of the administration's policy. Whatever the reasons for the invasion, the United States found itself on April 9, 2003 the hegemonic power in Iraq, faced with the responsibilities of governance. And indeed until June 28, 2004, when sovereignty was transferred to the Iraqis, the United States (with some input by the British) ruled Iraq directly through a mostly American administration in Baghdad called the Coalition Provisional Authority.