PACIFC OCEAN (March 23, 2021) Lt. Cmdr. Ann Long, left, the 11th Marine Expeditionary Unit surgeon, performs a point-of-care ultrasound on a simulated casualty during a mass casualty exercise aboard Wasp-class amphibious assault ship USS Essex (LHD 2). U.S. Navy and Marine Corps integration training provides the Essex Amphibious Ready Group/11th MEU its first opportunity to plan, brief, and execute multiple mission packages. Essex is underway conducting routine operations in U.S. Third Fleet. (U.S. Marine Corps photo by Sgt. Jennessa Davey)