Staff Sgt. Lara Ashley, 47th Medical Operations Squadron NCO in charge of public health, receives a pair of 2nd lieutenant bars from Col. Brian Hastings, 47th Flying Training Wing commander, at Laughlin Air Force Base, Texas, May 28, 2013. The Air Force allows 16.47 percent of applicants to transition from being an enlisted member to serving as an officer. (U.S. Air Force photo/Airman 1st Class John D. Partlow)