U.S. Marines with Kilo Company, 3d Battalion, 3d Marines,

U.S. Marines with Kilo Company, 3d Battalion, 3d Marines, attached to 4th Marine Regiment, integrate Assault Amphibious Vehicles into military operations in urban terrain during Service Level Training Exercise 1-21 at Marine Corps Air Ground Combat Center Twentynine Palms, California, Oct. 7, 2020. 3d Battalion, 3d Marines conducted MOUT training in preparation for a Maneuver Warfare Exercise, demonstrating their technical and tactical proficiency. (U.S. Marine Corps photo by Lance Cpl. Juan Carpanzano)