U.S. Marines and Sailors with Combat Logistics Battalion 5, Combat Logistics Regiment 1, 1st Marine Logistics Group participate in a seven mile conditioning hike on Camp Pendleton, Calif., June 27, 2017. The Marines have multiple conditioning hikes to prepare for Mountain Exercise 4-17 which will be conducted at the Marine Corps Mountain Warfare Training Center in Bridgeport, Calif. (U.S. Marine Corps photo by Lance Cpl. Adam Dublinske)