191021-M-DB029-1090 CAMP PENDLETON, Calif. (Oct. 21, 2019) Marines with Assault Amphibian School Battalion, Training Command, conduct basic water driving training in an AAV-P7/A1 Amphibious Assault Vehicle at the 21 Area boat basin on Marine Corps Base Camp Pendleton, California, Oct. 21, 2019. Marines training to be AAV crewmembers at the school train in basic land driving and tactics, basic water driving, and basic gunnery training over 55 training days. The battalion also trains AAV mechanics, officers, and crew chiefs. (U.S. Marine Corps photo by Lance Cpl. Andrew Cortez/Released)