U.S. Army Sgt. Aaron Selfies, assigned to the 130th

U.S. Army Sgt. Aaron Selfies, assigned to the 130th Chemical Company, uses a knife to eliminate an enemy combatant during a combat training exercise at Fort Dix, N.J., June 7, 2014. This training gives Soldiers techniques they can use to protect themselves during hand to hand combat situations. (U.S. Army photo by Sgt. Austin Berner/Released)