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U.S. Air Force maintainers assigned to the 421st Mission Generation Force Element refuel an F-35A Lightning II prior to bilateral flight training at Clark Air Base, Philippines, July 7, 2025. Exercise Cope Thunder 25-2 allows Airmen to train alongside their Philippine Air Force counterparts, demonstrating a shared vision of maintaining security, stability, prosperity and peace throughout the Indo-Pacific. (U.S. Air Force photo by Airman 1st Class Aden Brown)