A U.S. Air Force KC-135 Stratotanker aircraft returns from the final refueling mission over Afghanistan at the Transit… https://www.rawpixel.com/image/3318711/free-photo-image-aircraft-airfield-airlinerFree Image from public domain licenseU.S. Air Force Airman 1st Class Michael Williams, a communications navigation technician with the 728th Air Mobility… https://www.rawpixel.com/image/3318720/free-photo-image-aircraft-airfield-airlinerFree Image from public domain license