180307-M-XF182-0014 BRIDGEPORT, Calif. (March 7, 2018) Seaman Jonathan Joo, a field medical technician with the 1st Medical Battalion, 1st Marine Logistics Group, overlooks the Sierra Mesa mountain range during a conditioning hike as part of Mountain Exercise 2-18 at the Marine Corps Mountain Warfare Training Center in Bridgeport, Calif. The hike was in preparation for a longer movement over a larger area to Grouse Meadows, a training area where the Marines and Sailors will set up a battalion staging area. (U.S. Marine Corps photo by Sgt. James Trevino/Released)