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U.S. Air Force F-15C Strike Eagles taxi to the runway for takeoff Dec. 5, 2017, at Gwangju Air Base, Republic of Korea, during Exercise Vigilant Ace-18. (Airman 1st Class Kristen A. Heller/Air Force)
U.S. Air Force F-15C Strike Eagles taxi to the runway for takeoff Dec. 5, 2017, at Gwangju Air Base, Republic of Korea, during Exercise Vigilant Ace-18. (Airman 1st Class Kristen A. Heller/Air Force)