U.S. Air Force Col. John Klein delivers his final speech as commander, 60th Air Mobility Wing, during a change of command ceremony, July 10, 2018, Travis Air Force Base, Calif. Klein relinquished command of Air Mobility Command's largest wing to Col. Ethan Griffin. (U.S. Air Force Photo by Heide Couch)

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Photo by: GS-9 Heide Couch |  VIRIN: 180710-F-RU983-0122.JPG