CHAIRMAN'S CHEER Army Gen. Martin E. Dempsey, chairman of the Joint Chiefs of Staff, leads cadets in a cheer from the field during the Army-Navy football game at Lincoln Financial Field in Philadelphia, Dec. 8, 2012. Navy won 17-13. SHARE: Download: Full Size (0.05 MB) Credit: VIRIN: 446159-M-XPZ07-160.jpg Photo Gallery