Smoke rises from the Syrian town of Kobani, seen from near the Mursitpinar border crossing on the Turkish-Syrian border in the southeastern town of Suruc in Sanliurfa province October 15, 2014. American-led forces conducted 21 airstrikes near Kobani, Syria,  in the last two days to slow the advance of Islamic State militants, the U.S. military said on Tuesday, warning the situation on the ground is fluid as militants try to gain territory.
iKai Pfaffenbach/Reuters

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