On 15 December , martial closing ceremony was held in Baghdad putting a formal end to the U.S. mission in Iraq .
As previously planned , the last US combat troops were withdrawn from Iraq in 2011 , with security responsibility in the hands of the Iraqi Armed Forces .
On 15 December , martial closing ceremony was held in Baghdad putting a formal end to the US mission in Iraq .
As previously planned , the last US combat troops were withdrawn from Iraq in 2011 , with security responsibility in the hands of the Iraqi Armed Forces .