ATLANTIC OCEAN (March 31, 2021) Damage Controlman 1st Class Daniel Snell, assigned to the Harpers Ferry-class dock landing ship USS Carter Hall (LSD 50), demonstrates how to use a naval firefighting thermal imager (NFTI) during a general quarters training exercise, March 31, 2021. Carter Hall is operating in the Atlantic Ocean with Amphibious Squadron 4 and the 24th Marine Expeditionary Unit (24th MEU) as part of the Iwo Jima Amphibious Ready Group. (U.S. Navy photo by Mass Communication Specialist Seaman Sawyer Connally)