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Sgt. Mitchell Castner, a landing support specialist, climbs down a ladder during external lift training at Draughon Range near Misawa Air Base, Japan, August 21, 2017, in support of exercise Northern Viper 17. This combined-joint exercise is held to enhance regional cooperation between participating nations to collectively deter security threats. Castner, a native of Eatontown, New Jersey, is assigned to Combat Logistics Battalion 4, Combat Logistics Regiment 3, 3rd Marine Logistic Group. ( Marine Corps photo by Lance Cpl. Andy Martinez)
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