Command Headquarters Defense Secretary Dr. Mark T. Esper walks with Navy Adm. Craig S. Faller, the commander of U.S. Southern Command, during a visit to the command’s headquarters in MiamI, Jan. 23, 2020. SHARE IMAGE: Download Image: Full Size (1.64 MB) Tags: Defense Secretary , Esper Photo By: Army Staff Sgt. Nicole Mejia, DOD VIRIN: 200123-D-AP390-2177C.JPG Photo Gallery