Iraq’s chemical, biological, and nuclear weapons programs, together with Iraqi long-range missile development and support for al-Queda terrorism, were the primary justifications put forward for military action. On March 17, 2003, President Bush issued an ultimatum demanding that Saddam Hussein and his sons depart from Iraq within 48 hours. On March 19, offensive operations began with air strikes against Iraqi leadership positions. By April 15, after 27 days of operations, coalition forces were in relative control of all major Iraqi cities and Iraqi political and military leadership had disintegrated. On May 1, 2003, President Bush declared an end to major combat operations. There was no use of chemical or biological (CB)weapons, and no CB or nuclear weapons stockpiles or production facilities have been found.

Large-scale reconstruction assistance programs are being undertaken by the The United States following the war with Iraq. To fund such programs, Congress approved on April 12, 2003, a $2.48 billion Iraq Relief and Reconstruction Fund in the FY2003 Supplemental Appropriation. On November 6, 2003, the President signed into law P.L. 108-106, the FY2004 Emergency Supplemental Appropriation, providing $18.4 billion for Iraq reconstruction. Contributions pledged at the October 24, 2003, Madrid donor conference by other donors amounted to roughly $3.6 billion in grant aid and as much as $13.3 billion in possible loans.