Chairman Ceremony Army Gen. Mark A. Milley and Air Force Gen. CQ Brown, Jr. attend a ceremony marking Milley's retirement and Brown's swearing-in as chairman of the Joint Chiefs of Staff at Joint Base Myer-Henderson Hall, Va., Sept. 29, 2023. President Joe Biden and Vice President Kamala Harris attended the ceremony, which was hosted by Secretary of Defense Lloyd J. Austin III. SHARE IMAGE: Download Image: Full Size (0.39 MB) Tags: Leaders, chairman, Brown Photo By: Henry Villarama, Army VIRIN: 230929-D-LS763-1170.JPG Photo Gallery