Cherokee Troop, 6th Squadron, 4th Cavalry Regiment, 3rd Brigade Combat Team, 1st Infantry Division soldier, from Fort Knox, Ky., stands behind his assigned mine resistant ambush protected vehicle and cautiously observes an Afghan civilian who is walking toward him, Oct. 14, 2013. The soldier is part of an assigned personal security detachment escorting Brig. Gen. Duane Gamble, deputy commanding general, 1st Theater Sustainment Command, on a battlefield circulation of Afghan Northern Distribution Network, Rail Port 2. (U.S. Army photos by Sgt. 1st Class Timothy Lawn, 1st Theater Sustainment Command Public Affairs/Released)