Syrian Kurds say air strikes against Isis are not working | World news | The Guardian: US-led air strikes in northern Syria have failed to interrupt the advance of Islamic State (Isis) fighters closing in on a key city on the Turkish border, raising questions about the western strategy for defeating the jihadi movement.
Almost two weeks after the Pentagon extended its aerial campaign from Iraq to neighbouring Syria in an attempt to take on Isis militants in their desert strongholds, Kurdish fighters said the bombing campaign was having little impact in driving them back.