(WASHINGTON) -- Chuck Hagel has been sworn in as the new secretary of defense, Pentagon spokesman George Little confirms.
The swearing-in ceremony was held privately Wednesday morning inside Hagel's new offices and attended by family members and his immediate office staff.
Upon arriving at the Pentagon Wednesday for his first day on the job, Hagel was greeted by reporters and Marine Lt. Gen. Thomas Waldhauser, who will serve as Hagel's military aide. Waldhauser also held the same position under Leon Panetta, Hagel's predecessor.
Later Wednesday morning, Hagel will address the staff at the Pentagon.
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