A rebel fighter fires his weapon during what rebels say is a clash with forces loyal to Syrias President Bashar al-Assad in the village of Tshalma near the Armenian Christian town of Kasab May 11, 2014
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Obama West Point analysis: 'Why now, why so late?'

Mark Mardell analyses President Barack Obama's key foreign policy address.

Mr Obama promised a new US foreign policy based on "collective action" with allies abroad.

Go to next video: Obama West Point speech in full