200318-M-GJ479-0112 CAMP LEJEUNE, N.C. (March 18, 2020) Assault amphibian vehicles (AAV) prepare to enter the water on Camp Lejeune, N.C., during Type Commander Amphibious Training (TCAT). The purpose of TCAT is for the 24th Marine Expeditionary Unit and participating elements to exercise expeditionary command and control and rehearse amphibious operations. The AAVs are with 2nd Assault Amphibian Battalion, 2nd Marine Division. (U.S. Marine Corps photo by Staff Sgt. Mark E Morrow Jr/Released)