Withdrawal of United States troops from Iraq (2020–2021)

After the defeat of the Islamic State in Iraq in 2017, Iraq and the United States began discussing the partial withdrawal of American combat troops from Iraq in December 2019. In January 2020, during massive protests in Iraq, and following an escalation of tensions between the United States and Iran, the Iraqi Council of Representatives passed a non-binding measure to "expel all foreign troops from their country," including American and Iranian troops. The American Trump administration ignored the motion, but later began a partial drawdown of forces in March. U.S. combat troops have since accelerated their withdrawal from Iraq.

In July 2021, President Joe Biden announced that he would end the U.S. combat mission in Iraq by the end of 2021, with remaining U.S. troops serving in an advisory and assistance role. The U.S. combat mission formally concluded on 9 December 2021, with 2,500 U.S. troops remaining in the country. As of March 15, 2023, the number of American forces in Iraq was still approximately 2,500 soldiers, deployed mainly in Baghdad and the north of the country.