 FILE -- In this Nov. 17, 2014 file photo, smoke rises from the Syrian city of Kobani, following an airstrike by the US led coalition, seen from a hilltop outside Suruc, on the Turkey-Syria border. After months of losing ground in Iraq and Syria, the Islamic State group is showing signs of the wear and tear, with commanders on the ground saying they are seeing an increase in desertions. But the jihadis appear to be lashing back with more terrorist and chemical attacks. (AP Photo/Vadim Ghirda, File)