Ultimate Fighting Championship (UFC) fighter Matt Mitrione, center, explains to U.S. Army Sgt. Jarmar Weathersbe, left, with the 219th Battlefield Surveillance Brigade, and Staff Sgt. Nicholas Riggle, with the 157th Maneuver Enhancement Brigade, the best way to bring down an opponent's head for a knee strike during an instructional seminar at the gym during a visit to Camp Atterbury, Indiana, Sept. 20, 201. Mitrione and UFC fighter Chris Lytle visited the installation and provided combatives tips to interested Service members. (U.S. Army photo by Michael Maddox/Released)