John M. McHugh delivers the oath of office to Gen. Martin E. Dempsey.
Secretary of the Army John M. McHugh (left) delivers the oath of office to Gen. Martin E. Dempsey (right) while his wife Deanie (2nd from left) looks on during an arrival and swearing-in ceremony at Fort Myer, Va., on April 11, 2011. Dempsey was sworn in as the 37th Chief of Staff of the Army after Gen. George W. Casey Jr. retired earlier in the day.