CELTIC SEA (April 9, 2021) Lance Cpl. Valadez, assigned to the 24th Marine Expeditionary Unit (24th MEU) treats a simulated casualty during a combat training exercise aboard the Harpers Ferry-class dock landing ship USS Carter Hall (LSD 50), April 9, 2021. Carter Hall is operating in the Celtic Sea with Amphibious Squadron 4 and the 24th MEU as part of the Iwo Jima Amphibious Ready Group. (U.S. Navy photo by Mass Communication Specialist Seaman Sawyer Connally)