PACIFIC OCEAN (April 20, 2021) U.S. Marines with Battalion Landing Team 1/1, 11th Marine Expeditionary Unit, provide emergency medical care to a simulated casualty aboard the amphibious dock landing ship USS Pearl Harbor (LSD 52). The Marines and Sailors of the 11th MEU are conducting routine training as part of the Essex Amphibious Ready Group (ARG). Together, the 11th MEU, Amphibious Squadron (PHIBRON) 1, and ships are designated as an ARG. (U.S. Marine Corps photo by Cpl. Jaxson Fryar)