Turkey does not want the U.S.-backed offensive to take the Syrian Islamic State stronghold of Raqqa by relying on Kurdish People's Protection Units (YPG) militia.
|Turkish president, Recep Erdogan, said that Turkey could join the U.S.-led operation but only if Kurdish fighters were not involved. Turkey considers the Kurdish YPG and its associated Kurdish Democratic Union party as a terrorist group with links to Kurdish rebel insurgents within Turkey. The U.S., on the other hand, regards the group as among the most effective at fighting against the Islamic State and have provided them with support. This has created tension between the U.S. and Turkey.|