Chairman of the Joint Chiefs of Staff Gen. CQ Brown, Jr. swears in as the 21st chairman from outgoing chairman U.S. Army Gen. Mark Milley during the Armed Forces Hail at Joint Base Myer-Henderson Hall, Va., Sept. 29, 2023. The ceremony, hosted by Secretary of Defense Lloyd J. Austin III, marked Brown's swearing in and was attended by President Joseph R. Biden Jr., Vice President Kamala Harris, and other distinguished guests. (Department of Defense photo by Benjamin Applebaum)