A U.S. Army Ranger assigned to Alpha Company, 3rd Battalion, 75th Ranger Regiment, scans the darkness for enemies during annual Task Force Training 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. Philip Diab/Released)
