Outgoing US defence secretary Chuck Hagel
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Hagel resigns amid reports of differences over US policy

Chuck Hagel has resigned as US defence secretary after less than two years in the role.

President Barack Obama confirmed his resignation and paid tribute to his "class and integrity".

Mr Hagel, 68, a Vietnam war veteran and former Republican senator, will stay in his post until his successor is confirmed.

The BBC's North America Editor Jon Sopel reports.

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