Esper Remarks Defense Secretary Dr. Mark T. Esper hosts a town hall during his visit to the headquarters of U.S. Strategic Command at Offutt Air Force Base, Neb., Feb. 20, 2020. SHARE: Download: Full Size (0.44 MB) Tags: Defense Secretary, strategic command, Esper Credit: Army Staff Sgt. Brandy Nicole Mejia VIRIN: 200220-D-AP390-1201.JPG Photo Gallery