Pentagon Briefing Secretary of Defense Lloyd J. Austin III and Army Gen. Mark A. Milley, chairman of the Joint Chiefs of Staff, brief the media at the Pentagon, Aug. 18, 2021. SHARE IMAGE: Download Image: Full Size (1.49 MB) Tags: Milley, Chairman, Afghanistan, Austin, Defense Secretary Photo By: Lisa Ferdinando, DOD VIRIN: 210818-D-BN624-0004.JPG Photo Gallery