Tech. Sgt. Joseph Matulewicz, left, Air Force Honor Guard, Joint Base Anacostia-Bolling, Washington, D.C., competes against Pfc. Denzel Davis, HHC, 1st Battalion, 3d U.S. Infantry Regiment (The Old Guard), Joint Base Myer-Henderson Hall during the Joint Force Headquarters-National Capital Region and Military District of Washington 5th Annual Combatives Tournament's light-heavyweight championship bout at the JBM-HH Fitness Center April 18, 2013. Matulewicz went on to win the championship for his weight class.