Australian contribution to the 2003 invasion of Iraq included 14 F/A-18 Hornet fighters). Combat forces committed to Operation Falconer for the 2003 Invasion were withdrawn during 2003. Under the name Operation Catalyst, Australian combat troops were redeployed to Iraq in 2005, however, and assumed responsibility for supporting Iraqi security forces in one of Iraq's southern provinces. These troops began withdrawing from Iraq on 1 June 2008 and were completely withdrawn by 28 July 2009. A headquarters staff of about 60 personnel under the command of Brigadier Maurie McNarn. Planning for the deployment of ADF units to the Middle East began in mid-2002 when Australian officers were attached to
Withdrawal of U.S. troops from Iraq revision was to extend the original date of 30 June 2009 for an additional 10 months, to 31 August 2010. After which all but a "transitional force" of 35,000 to 50,000 troops would be withdrawn from the Middle Eastern nation. President Obama reaffirmed commitment to the original complete withdrawal date of 31 December 2011, set by the agreement between the Bush Administration and the Iraqi government. President Obama defined the task of the transitional force as "training, equipping, and advising Iraqi Security Forces as long as they remain non-sectarian; conducting targeted counter-terrorism missions; and protecting our ongoing civilian and military