ATLANTIC OCEAN (March 1, 2021) Marines with 24th Marine Expeditionary Unit (MEU) provide security aboard the dock landing ship USS Carter Hall (LSD 50) during a strait transit exercise as part of a composite unit training exercise (COMPTUEX) in the Atlantic Ocean, March 1, 2021. COMPTUEX is a month-long training event designed to test the MEU’s capabilities against the full spectrum of military operations. (U.S. Marine Corps photo by Lance Cpl. Nicholas Guevara)