5/3/2012 - Senior Master Sgt. Christopher Raynor (right), 51st Civil Engineer Squadron deputy fire chief, thrusts at his opponent at Osan Air Base, Republic of Korea, May 2, 2012. Raynor has been instructing Airmen and others at Osan on proper form as well as offensive and defensive postures during a weekly session in the martial arts of medieval fencing. The class is held on Wednesdays in the Community Center from 7 -10 p.m. Students practice different styles, including single point, sword and dagger, and sword and cloak. (U.S. Air Force photo/Staff Sgt. Craig Cisek)