Leader Greeting Secretary of Defense Lloyd J. Austin III greets Deputy Secretary of Defense David L. Norquist and Army Gen. Mark A. Milley, chairman of the Joint Chiefs of Staff, upon arriving at the Pentagon, Jan. 22, 2021. Austin was confirmed as secretary of defense earlier in the day. SHARE: Download: Full Size (1.78 MB) Tags: chairman, milley, austin, defense secretary, deputy secretary, norquist Credit: Lisa Ferdinando, DOD VIRIN: 210122-D-BN624-0071.JPG Photo Gallery