Day turns to night at Forward Operating Base Kunduz in Afghanistan on Aug. 14, 2013. The 6th Squadron, 4th Cavalry Regiment, 3rd Brigade Combat Team, 1st Infantry Division, from Fort Knox, Ky., in support of Operation Enduring Freedom. (U.S. Army photo by 1st Lt. Cory Titus, Hatchet Troop, 6th Squadron, 4th Cavalry Regiment, 3rd Brigade Combat Team, 1st Infantry Division/Released.)