On March 20, 2003, the coalition forces headed by the United States of America launched Operation Iraqi Freedom to remove the regime of Saddam Hussein. By mid-April, major fighting was essentially over, and on May 1, the United States declared an end to major combat operations. With that declaration, the coalition forces faced with a very serious challenge to ensure stability in the post-conflict period and a peaceful political transition to a new and democratic Iraqi government. However, despite the continuing power of insurgency and the sectarian violence, Iraq is gradually gearing into a kind of constitutional process and political development. The election of January 2005, the negotiation of the constitution in the summer of that year, ...