Gaggle Comments Defense Secretary Dr. Mark T. Esper speaks to reporters during a press gaggle on board an E-4B Advanced Airborne Command Post aircraft over the Pacific Ocean, Aug. 2, 2019. SHARE IMAGE: Download Image: Full Size (2.62 MB) Tags: Secretary, Esper Photo By: Amber I. Smith VIRIN: 190802-D-SV709-0481.JPG Photo Gallery