Quick Reaction Force tryouts
U.S. Air Force Senior Airman Trace Langston (right), a Tactical Response Force assaulter assigned to the 673d Security Forces Squadron, instructs Senior Airman Cullen Clark (left), a defender assigned to the the 673d Security Forces Squadron, during Quick Reaction Force tryouts at Joint Base Elmendorf-Richardson, Alaska, March 26. The QRF is a specialized, highly trained unit capable of rapidly responding to a variety of threats and emergencies, including base defense, security incidents, and supporting other military units. (U.S. Air Force photo by Airman 1st Class Hunter Hites)