Obama: US 'will not relent' in Islamic State campaign
"The most powerful tool we have is to say we are not afraid," Obama said as he wrapped up a nine-day trip to Turkey and Asia that was shadowed by terror attacks.
The president also pressed Russian President Vladimir Putin to align himself with the U.S.-led coalition, noting that the Islamic State has been accused of bringing down a Russian passenger jet last month, killing 224 people.
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Sure.