Islamic State: Why Turkey prefers Iraq's Kurds in fight against IS
As Turkey announces that it will allow Peshmerga fighters to cross its border into Syria to help defend the town of Kobane from Islamic State militants, the BBC's Mark Lowen explains Ankara's relations with the various Kurdish factions and why it is backing Iraqi and not Turkish Kurds in the fight against IS.
More:BBC News - Islamic State: Why Turkey prefers Iraq's Kurds in fight against IS
