Corporal Andrew Bolek, a communications operator with

Corporal Andrew Bolek, a communications operator with Combat Logistics Regiment 25, 2nd Marine Logistics Group, holds security during mountainous tactical convoy training at Lucky Boy Pass, Marine Corps Mountain Warfare Training Center, Bridgeport, Calif., Feb. 9, 2018. The training provided Marines experience in improvised explosive device recognition, navigation in mountainous terrain, enemy contact drills, and casualty treatment and evacuation. The training will prepare the Marines for joint-force training exercise Arctic Edge in northern Alaska, which will expose Marines to the peninsula’s extreme weather. (U.S. Marine Corps photo by Sgt. Brianna Gaudi)