BIRTHDY BALL Army Chief of Staff Martin E. Dempsey, Sgt. Maj. of the Army Raymond F. Chandler III, center, and Army Secretary John M. McHugh cut the ceremonial cake during the 236th U.S. Army Birthday Ball at the Gaylord National Resort and Convention Center at National Harbor, Md., June 11, 2011 SHARE: Download: Full Size (0.05 MB) Credit: VIRIN: 115183-E-MUA20-756.jpg Photo Gallery