Milley Testimony Army Gen. Mark A. Milley, chairman of the Joint Chiefs of Staff, testifies at a House Armed Service Committee hearing on Syria and Middle East policy in Washington, Dec. 11, 2019. SHARE: Download: Full Size (0.92 MB) Tags: Chairman, Milley Credit: Army Sgt. 1st Class Chuck Burden VIRIN: 191211-D-HD608-0006.JPG Photo Gallery