U.S. Air Force Airman 1st Class Noah Johnson, 100th Aircraft Maintenance Squadron flight and instrument control systems apprentice, looks over tools at RAF Mildenhall, England, May 2, 2019. Airmen are put through a training program, called Phase I, where they are put in classroom and flight line settings as part of upgrade training. (U.S. Air Force photo by Airman 1st Class Brandon Esau)