U.S. soldiers assigned to the 1st Brigade Combat Team, 4th Infantry Division discuss operation details over a sand table layout of the battle space at the National Training Center at Fort Irwin, Calif., Nov. 2, 2012. The NTC trains the transformed Army by conducting force-on-force and live-fire training for ground and aviation brigades in a joint scenario across the spectrum of conflict, using a live-virtual-constructive training model. (U.S. Air Force photo by Senior Airman Matthew Bruch/Released)