U.S. Acting Secretary of Defense Christopher Miller presents the 2020 Secretary of Defense Maintenance Effectiveness Award to the 100th Maintenance Group at Royal Air Force Mildenhall, England, Dec. 21, 2020. The 100th MXG maintains the KC-135 Stratotanker aircraft that make up the only permanent air refueling wing in U.S. Air Forces in Europe and Air Forces Africa. (U.S. Air Force photo by Airman 1st Class Joseph Barron)

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Photo by: Airman 1st Class Joseph Barron |  VIRIN: 201221-F-PZ401-1191.JPG