Zalmay Mamozy Khalilzad (born March 22, 1951) is an American diplomat and foreign policy expert. He served as the U.S. special representative for Afghanistan reconciliation from 2018 to 2021. He also served as United States ambassador to the United Nations, serving in the role from 2007 to 2009. He previously served in the Bush administration as ambassador to Afghanistan from 2004 to 2005 and Ambassador to Iraq from 2005 to 2007. Wikipedia