Hill Testimony Secretary of Defense Lloyd J. Austin III, Army Gen. Mark A. Milley, chairman of the Joint Chiefs of Staff, and Marine Corps Gen. Kenneth F. McKenzie, commander of U.S. Central Command, testify before the House Armed Services Committee on the conclusion of military operations in Afghanistan, Sept. 29, 2021. SHARE: Download: Full Size (6.2 MB) Credit: Chad McNeeley, DOD VIRIN: 210929-D-TT977-0284.JPG Photo Gallery