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 IMAGE: Download Image: Full Size (0.85 MB) Tags: defense secretary, president, trump, esper Photo By: Army Sgt. Amber Smith, DOD VIRIN: 190725-D-SV709-0756.JPG Photo Gallery