Taking the Oath Secretary of Defense Lloyd J. Austin III swears in Dr. Kathleen H. Hicks as deputy secretary of defense at the Pentagon, Feb. 9, 2021. SHARE: Download: Full Size (1.27 MB) Tags: Austin, Defense Secretary, deputy secretary, Hicks Credit: Air Force Staff Sgt. Jack Sanders, DOD VIRIN: 210209-D-XI929-1007R.JPG Photo Gallery