The American Occupation of Iraq began in 2003 after the U.S.-led invasion aimed to topple the regime of Saddam Hussein. The invasion was justified by claims that Iraq possessed weapons of mass destruction and posed a threat to global security. Following the initial military success, the U.S. established a coalition government and began efforts to rebuild the country. The occupation faced significant challenges, including widespread violence, insurgency, and sectarian conflict. The U.S. military presence aimed to stabilize Iraq and support the establishment of a democratic government. The occupation officially ended in 2011, but its effects continue to influence the region.