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A formation of skis belonging to U.S. Marines from 2nd Battalion, 3rd Regiment, 3rd Marine Division, as they conduct a bilateral sniper rifle range with Soldiers from 5th Brigade, Japan Ground Self-Defense Force, during exercise Northern Viper on Hokudaien Training Area, Hokkaido, Japan, Jan. 28, 2020. Northern Viper is a regularly scheduled training exercise that is designed to enhance the interoperability of the U.S. and Japan Alliance by allowing Marine Air-Ground Task Forces from III Marine Expeditionary Force to maintain their lethality and proficiency in MAGTF Combined Arms Operations in cold weather environments