Soldiers from 2nd Armored Brigade Combat Team, 1st Infantry Division, from Fort Riley, Kan., work on their Abrams tanks at the National Training Center in Fort Irwin, Calif., Feb. 21, 2013. The 2nd Armored Brigade Combat Team, 1st Infantry Division, is training at the center as part of their alignment training for AFRICOM. (DoD photo by EJ Hersom)