Summary
America's top general said Thursday that the militant group ISIS can be contained and eventually defeated, but only if it is engaged in Syria and not just in Iraq.
Dempsey said he wasn't predicting U.S. airstrikes in Syria, but said the problem must be addressed diplomatically, politically and militarily by America and its regional partners.
ISIS released a video Tuesday in which a militant with a British accent is seen beheading American journalist James Foley and threatening a second U.S. hostage if the airstrikes continue.
Interpol has called for a global response to the threat, with monitors covering the conflict in Syria saying ISIS has more than 50,000 fighters in that country alone, including 20,000 foreigners.
Foley had been reporting for GlobalPost from Syria when he was abducted in November 2012 .
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