U.S. Army Sgt. Gregory Kershner, assigned to the 21st

U.S. Army Sgt. Gregory Kershner, assigned to the 21st Theater Support Command engages a target with a practice hand grenade during the 2013 Best Warrior competition, sponsored by U.S. Army Europe (USAREUR) in Grafenwoehr, Germany, Aug. 19, 2013. The weeklong competition tests Soldiers' physical stamina, leadership and technical knowledge and skill. Winners in the Soldier and Noncommissioned officer categories of the USAREUR competition will go on to compete at the Department of the Army level. (U.S. Army photo by Staff Sgt. Pablo N. Piedra/Released)