ARLINGTON, VA – NOVEMBER 11: (L-R) Chairman of the Joint Chiefs of Staff Army Gen. Martin Dempsey, his wife Deanie Dempsey and Secretary of Defense Leon Panetta wait for a Veterans Day full honor ceremony to begin at Tomb of the Unknowns at Arlington National Cemetery November 11, 2011 in Arlington, Virginia. President Barack Obama later delivered remarks at the cemetery amphitheater after laying a wreath at the tomb. (Photo by Chip Somodevilla/Getty Images)