On February 27, 2009, Obama announced that combat operations in Iraq would end within 18 months. His remarks were made to a group of Marines preparing for deployment to Afghanistan. Obama said, "Let me say this as plainly as I can: by August 31, 2010, our combat mission in Iraq will end."[260] The Obama administration scheduled the withdrawal of combat troops to be completed by August 2010, decreasing troop's levels from 142,000 while leaving a transitional force of about 50,000 in Iraq until the end of 2011. On August 19, 2010, the last U.S. combat brigade exited Iraq. Remaining troops transitioned from combat operations to counter-terrorism and the training, equipping, and advising of Iraqi security forces.[261][262] On August 31, 2010, Obama announced that the United States combat mission in Iraq was over.[263] On October 21, 2011 President Obama announced that all U.S. troops would leave Iraq in time to be "home for the holidays".[264]
In June 2014, amid territorial gains made by the Islamic State of Iraq and the Levant following the U.S. withdrawal in 2011, Obama sent 275 troops to provide support and security for U.S. personnel and the U.S. Embassy in Baghdad.[265]