Live-Fire Demonstration Defense Secretary Dr. Mark T. Esper, right, and Navy Adm. John C. Aquilino, the Pacific Fleet commander, watch live-fire demonstrations aboard the amphibious assault ship USS Essex in the Pacific Ocean, Aug. 26, 2020. The visit is part of a key leader engagement to demonstrate Navy and Marine Corps combat readiness and resilience during a global pandemic. SHARE IMAGE: Download Image: Full Size (1.18 MB) Tags: Defense Secretary, Esper Photo By: Navy Petty Officer 2nd Class John Luke McGovern VIRIN: 200826-N-SH168-1317.JPG Photo Gallery