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Paratroopers with 3rd Battalion, 509th parachute infantry regiment, 4th Infantry Brigade Combat Team (Airborne), 25th Infantry Division, descend from the sky during an airfield-seizure operation at Donnelley Training Area, Alaska, Feb., 7, 2021. Paratroopers will spend approximately ten days in the Alaskan cold conducting a near-peer combat scenario beginning with an airborne operation to secure an airfield.