President Barack Obama and Gen. Martin Dempsey, Chairman of the Joint Chiefs of Staff, listen to Defense Secretary Chuck Hagel deliver remarks during the September 11th Observance Ceremony at the Pentagon Memorial in Arlington, Va., Sept. 11, 2014.
15 Sep 2014|

President Barack Obama and Gen. Martin Dempsey, Chairman of the Joint Chiefs of Staff, listen to Defense Secretary Chuck Hagel deliver remarks during the September 11th Observance Ceremony at the Pentagon Memorial in Arlington, Va., Sept. 11, 2014.