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A U.S. Air Force maintainer assigned to the 13th Aircraft Maintenance Squadron prepares a U.S. Air Force F-16 Fighting Falcon assigned to the 13th Fighter Squadron for takeoff during exercise Cope North 21 at Andersen Air Force Base, Guam, Feb. 17, 2021. Exercises such as Cope North allow the Pacific Air Forces to validate new ways to deploy and maneuver assets through exercises and engagements.