Pentagon Briefing Defense Secretary Mark T. Esper and Chairman of the Joint Chiefs of Staff Army Gen. Mark A. Milley hold a joint press conference at the Pentagon, Jan. 30, 2020. SHARE: Download: Full Size (1.24 MB) Tags: Milley, Chairman, Secretary, Esper Credit: Army Staff Sgt. Edwin J. Pierce VIRIN: 200130-D-BY943-1076B.JPG Photo Gallery