LANGLEY AIR FORCE BASE, Va. -- 2nd Lt. Sarabeth Hershey, 633d medical Group clinical nurse, and teammates compete in the pull-up competition during the Squadron Fitness Challenge May 27. Eighteen teams participated in the annual event wrapping up May fitness month, hosted by the 633d Force Support Squadron and Prism Sports to promote a healthy, active lifestyle. (U.S. Air Force Photo/Staff Sgt. Christina M. Styer)