U.S. Army Lt. Col. Timothy O'Brien, left, the commander

U.S. Army Lt. Col. Timothy O'Brien, left, the commander of the 1st Battalion, 6th Infantry Regiment, 2nd Brigade Combat Team, 1st Armored Division and Lt. Gen. Keith C. Walker, the U.S. Army Training and Doctrine Command deputy commanding general, Futures and the director of Army Capabilities Integration Center listen to Soldiers assigned to Alpha Company explain systems currently under evaluation during the Network Integration Evaluation 13.2 at Dona Ana Range Complex, N.M., May 13, 2013. (U.S. Army photo by U.S. Army Sgt. Janelle Dean/Released)