171025-M-QB730-205.JPG - Cpl. Trevor Cooper checks a radio before participating in the Infantry Platoon Battle Course for Exercise Bougainville II at the Pohakuloa Training Area on the Island of Hawaii, Oct. 25, 2017. Cooper is a rifleman with 2nd Battalion, 3rd Marine Regiment, and is a native of Tucson, Ariz. Exercise Bougainville II prepares 2nd Bn., 3rd Marines for service as a forward deployed force in the Pacific by training them to fight as a ground combat element in a Marine Air-Ground Task Force. (U.S. Marine Corps photo by Lance Cpl. Isabelo Tabanguil)