Leaders Meeting Defense Secretary Dr. Mark T. Esper hosts Saudi Vice Defense Minister Prince Khalid bin Salman at the Pentagon, Aug., 29, 2019. SHARE IMAGE: Download Image: Full Size (0.66 MB) Tags: Defense Secretary , Esper Photo By: Army Staff Sgt. B. Nicole Mejia, DOD VIRIN: 190829-D-AP390-1130.JPG Photo Gallery