Lt. Col. Christine Mau, the 33rd Operations Group deputy commander, prepares to exit her F-35A Lightning II after completing her first training flight at Eglin Air Force Base, Fla., May 5, 2015. Mau, who previously flew F-15E Strike Eagles, made history as the first female F-35 pilot in the program. (U.S. Air Force photo/Staff Sgt. Marleah Robertson)