President Obama has outlined that he will work with Congress to ramp up US support for Syrian opposition groups, which he says is the best alternative to President Bashar al-Assad.
Speaking to the US Military Academy at West Point, Obama told the crowd how the United States will confront terrorism in Middle Eastern regions.
He said: "We will step up our efforts to support Syria's neighbours - Jordan and Lebanon, Turkey and Iraq - as they host refugees, and confront terrorists working across Syrian borders."
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Kurt Cochran and his wife Melissa had been visiting London from the US to celebrate their 25th wedding anniversary and were due to fly home.
The Government has previously described the new coin - which enters circulation tomorrow - as "harder to counterfeit than ever before".
The European bloc said that Russia should release hundreds of people it arrested at anti-government protests and rallies.