Joint Briefing Secretary of Defense Lloyd J. Austin III and Army Gen. Mark A. Milley, chairman of the Joint Chiefs of Staff, brief the media on Afghanistan at the Pentagon, Aug. 18, 2021. SHARE IMAGE: Download Image: Full Size (1.88 MB) Tags: Milley, Chairman, Afghanistan, Austin, Defense Secretary Photo By: Air Force Staff Sgt Julian Kemper VIRIN: 210818-F-CN170-044.JPG Photo Gallery