Cpl. Jeremiah D. Dorf, from Paynesville, Minn., a generator mechanic with Marine Air Control Squadron 4, Marine Air Control Group 18, 1st Marine Aircraft Wing, III Marine Expeditionary Force checks the generator connected to meteorological and oceanographic equipment in preparation of Valiant Shield 2014. Valiant Shield is a U.S.-only exercise integrating U.S. Navy, Air Force, Army and Marine Corps assets, offering real-world joint operational experience to develop capabilities that provide a full range of options to defend U.S. interests and those of its allies and partners. (U.S. Marine Corps photo by Lance Cpl. Tyler Ngiraswei/ Released) - Cpl. Jeremiah D. Dorf, from Paynesville, Minn., a generator mechanic with Marine Air Control Squadron 4, Marine Air Control Group 18, 1st Marine Aircraft Wing, III Marine Expeditionary Force checks the generator connected to meteorological and oceanographic equipment in preparation of Valiant Shield 2014. Valiant Shield is a U.S.-only exercise integrating U.S. Navy, Air Force, Army and Marine Corps assets, offering real-world joint operational experience to develop capabilities that provide a full range of options to defend U.S. interests and those of its allies and partners. (U.S. Marine Corps photo by Lance Cpl. Tyler Ngiraswei/ Released)

Marines with Combat Logistics Battalion 4, Combat Logistics Regiment 3, execute earth moving procedures with a 120M motorized road grader June 25 during a field exercise at Camp Hansen. The rain was unexpected, but helped them with operating the equipment during inclement weather. The Marines are with CLB-4, CLR-3, 3rd Marine Logistics Group, III Marine Expeditionary Force. (U.S. Marine Corps photo by Lance Cpl. Isaac Ibarra/Released) - Marines with Combat Logistics Battalion 4, Combat Logistics Regiment 3, execute earth moving procedures with a 120M motorized road grader June 25 during a field exercise at Camp Hansen. The rain was unexpected, but helped them with operating the equipment during inclement weather. The Marines are with CLB-4, CLR-3, 3rd Marine Logistics Group, III Marine Expeditionary Force. (U.S. Marine Corps photo by Lance Cpl. Isaac Ibarra/Released)