PACIFIC OCEAN (April 19, 2021) Combat Cargo Marines assigned to the amphibious assault ship USS Essex (LHD 2) prepare to sling load cargo onto a U.S. Navy MH-60S Sea Hawk, assigned to Helicopter Sea Combat (HSC) Squadron 21, during a vertical replenishment-at-sea aboard Essex. Sailors and Marines of the Essex Amphibious Ready Group (ARG) and the 11th Marine Expeditionary Unit (MEU) are conducting routine training off the coast of southern California. Together, the 11th MEU, Amphibious Squadron (PHIBRON) 1, and ships are designated as an ARG. (U.S. Marine Corps photo by Cpl. Israel Chincio)