Welcome Ceremony Members of the Joint Armed Forces Honor Guard take 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 IMAGE: Download Image: Full Size (1.39 MB) Tags: Milley, Army, Chairman Photo By: Lisa Ferdinando, DOD VIRIN: 190930-D-BN624-0518.JPG Photo Gallery