U.S. President Barack Obama gives the commencement address at the graduation ceremony at the U.S. Military Academy at West Point on May 28, 2014 in West Point, New York
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Barack Obama: 'US has the right to protect its people'

28 May 2014 Last updated at 16:33 BST

US President Barack Obama has been outlining his vision for a new chapter in US foreign policy, which includes a $5bn (£3bn) fund to help other countries tackle extremists.

Speaking at a graduation ceremony for cadets at the US Military Academy at West Point in New York, he said the US should ''never ask permission'' to protect its people.

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