Ceremonial Welcome President Donald J. Trump walks with Defense Secretary Dr. Mark T. Esper during a welcome ceremony in Esper's honor at the Pentagon, July 25, 2019. SHARE: Download: Full Size (0.85 MB) Tags: Defense Secretary, president, TRUMP, Esper Credit: Army Sgt. Amber Smith, DOD VIRIN: 190725-D-SV709-0756.JPG Photo Gallery