Courtesy of Defense Video Imagery Distribution System

Marines from 2nd Battalion, 8th Marine Regiment, hike to a potential climbing route for their night climb during Mountain Training Exercise 4-17 aboard Marine Corps Mountain Warfare Training Center, Bridgeport, Calif., August 1, 2017. Marines with 2/8, based out of Marine Corps Base Camp Lejeune, N.C., conducted the training in preparation for an upcoming deployment. (U.S. Marine Corps photo by Pfc. Margaret Gale)

Photo courtesy of Marine Corps Air Ground Combat Center, Twentynine Palms