Maj. Timothy Christensen, afghan rail advisory team, 1st Theater Sustainment Command, and native of Manchester, Conn., Brig. Gen. Duane Gamble, deputy commanding general, 1st TSC, native of Arbutus, Md., and Capt. Thomas Pierczynski, company commander, Cherokee Troop, 6th Squadron, 4th Cavalry Regiment, 3rd Brigade Combat Team, 1st Infantry Division, Fort Knox, Ky., and native of Chicago, Ill., review a map of the rail port and discuss the battlefield circulation mission of the Afghan, Northern Distribution Network Rail Port 2, Oct. 14, 2013. (U.S. Army photos by Sgt. 1st Class Timothy Lawn, 1st Theater Sustainment Command Public Affairs/Released)