U.S. Air Force Staff Sgt. Carla Carey, 18th Aeromedical Evacuation Squadron aeromedical evacuation technician, inspects her oxygen equipment before a training flight on Kadena Air Base, Japan, May 16, 2014. While 909th Air Refueling Squadron, the 18th AES is frequently employed to oversee the safe transportation of patients within the Pacific area of responsibility. (U.S. Air Force photo by Senior Airman Maeson L. Elleman)