Travis Gentry (left), Kuk Sool Won instructor, and Manfred Bemme, Loveless Okinawan Karate Academy, explain the rules of the sparring division to participants during the 15th annual U.S. Air Forces in Europe martial arts tournament at Ramstein Air Base, Germany, Feb. 28, 2015. More than 100 volunteers helped with setting up, judging, scorekeeping and medical assistance. (U.S. Air Force photo/Senior Airman Timothy Moore)