Senior Airman Oscar Felix, an air traffic controller with the 71st Operations Support Squadron, grapples with retired Army Col. Paul Bischoff Nov. 19 at the Community Chapel Activity Center at Vance Air Force Base, Oklahoma. Jiu Jitsu, a form of martial arts, was bought to Vance nearly two years ago by Tech. Sgt. Tony Eclavea, a chaplain assistant with the 71st Flying Training Wing. (U.S. Air Force photo / Staff Sgt. Nancy Falcon)