Secretary of Defense Chuck Hagel, foreground, testifies before the House Armed Services Committee Sept. 18, 2014, at the Rayburn House Office Building in Washington, D.C. Hagel discussed U.S. policy toward Iraq and Syria and the threat posed by extremists known as the Islamic State in Iraq and the Levant. (DoD photo by Master Sgt. Adrian Cadiz, U.S. Air Force/Released)