U.S. Marines with II Marine Expeditionary Force on Camp Lejeune, N.C., prepare for departure to Marine Expeditionary Force Exercise 21.1 taking place on Fort A.P. Hill, Va., Oct. 9, 2020. MEFEX 21.1 is a MEF level exercise consisting of approximately 1,200 Marines and sailors across the eastern United States. The exercise is structured to simulate a deployed environment, reinforce command and control, and maintain the warfighting ability of II MEF to train, fight, and win in every clime and place. (U.S. Marine Corps photo by Sgt. Austyn Saylor) - U.S. Marines with II Marine Expeditionary Force on Camp Lejeune, N.C., prepare for departure to Marine Expeditionary Force Exercise 21.1 taking place on Fort A.P. Hill, Va., Oct. 9, 2020. MEFEX 21.1 is a MEF level exercise consisting of approximately 1,200 Marines and sailors across the eastern United States. The exercise is structured to simulate a deployed environment, reinforce command and control, and maintain the warfighting ability of II MEF to train, fight, and win in every clime and place. (U.S. Marine Corps photo by Sgt. Austyn Saylor)