Leaders Salute Defense Secretary Dr. Mark T. Esper stands with Japanese Defense Minister Takeshi Iwaya in Tokyo, Aug. 7, 2019. SHARE: Download: Full Size (0.27 MB) Tags: Defense Secretary, SecDef, Esper Credit: Army Sgt. Amber I. Smith, DOD VIRIN: 190807-D-SV709-0287.JPG Photo Gallery