Pass and Review A service member carries a flag as he takes part in a ceremony welcoming Army Gen. Mark A. Milley as the 20th chairman of the Joint Chiefs of Staff at Joint Base Myer-Henderson Hall, Va., Sept. 30, 2019. SHARE: Download: Full Size (1.02 MB) Tags: Milley, Army, Chairman Credit: Navy Petty Officer 1st Class Dominique A. Pineiro VIRIN: 190930-D-PB383-046A.JPG Photo Gallery