US Afghanistan Commanders

November 13, 2012 - 3:34 PM
This combination of file photos from 2008-2012 shows, top row from left, Gens. David McKiernan, Stanley A. McChrystal, bottom row from left, David Petraeus and John Allen in Afghanistan. The four U.S. generals led U.S. and NATO forces in Afghanistan since 2008. (AP Photo)