A U.S. Army Ranger assigned to Charlie Company, 3rd Battalion, 75th Ranger Regiment, provides security while conducting night operations at Fort Knox, Ky., April 22, 2014. Rangers are constantly training to maintain the highest level of tactical proficiency. The training was to ensure all Soldiers are proficient in warrior skills and tasks in preparation for their upcoming deployment. (U.S. Army photo by Spc. Richard DeWitt/Released)