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 Combat forces committed to Operation Falconer for the 2003 Invasion were withdrawn during 2003.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 These troops began withdrawing from Iraq on 1 June 2008 and were completely withdrawn by 28 July 2009.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 1 April 2008. On 18 July 2007, after an all-night debate, the Senate blocked the passage of a bill that would have set a troop withdrawal timetable with a vote of 52–47. The withdrawal would have started within 120 days, and would have required that all troops (except an unspecified number could be left behind to conduct a very narrow set of missions) be out of the country by 30 April 2008. George McGovern and William R. Polk published a detailed proposal for U.S. withdrawal from Iraq in their book "Out of Iraq: A Practical Plan for Withdrawal Now". A