BRIDGEPORT, Calif. (April 17, 2021) Hospital Corpsman 2nd Class Caleb Gifford, an instructor with Mountain Warfare Training Center Training Command, watches a UH-60 Blackhawk helicopter with the Oregon Army National Guard’s G/1-189 Aviation (MEDVAC), during Mountain Warfare Training Exercise (MTX), a sub event of Service Level Training Exercise 3-21 at MWTC, Bridgeport, California, on April 17, 2021. The purpose of MTX is to teach Marines to survive and operate in extreme weather and mountainous environments. (U.S. Marine Corps photo by Lance Cpl. Andrew Bray)