Marines with Combat Logistics Battalion 15, Combat

Marines with Combat Logistics Battalion 15, Combat Logistics Regiment 17, 1st Marine Logistics Group, conduct a combat conditioning exercise aboard Camp Pendleton, Calif., Oct. 31, 2013. Marines undergo conditioning exercises, such as hiking, to build physical endurance and camaraderie within the battalion and set Marines up for success if they are faced with situations requiring physical courage. (U.S. Marine Corps photo by Lance Cpl. Cody Haas/ Released)