More. Driven by sympathy for nut-case Sunni fundamentalism and fear of Kurdish autonomy, Turkey has always been a keen ally of Isis. Throughout Isis's existence, Turkey has kept its borders with Iraq and Syria wide open for the free passage of morons and supplies to Isis held territory.
The Kurds of Syria and Iraq have been the only effective boots on the ground opponents of Isis. Heroic Kurdish fighting, as at Kobani, with the backing of Western airpower has resulted in the capture by the Kurds of a long swathe of erstwhile Isisdom along the Iraq/Syria border with Turkey. This has alarmed Ankara as it has resulted in a considerable increase in the territory of Free Kurdistan from its cradle in North East Iraq and throttled Turkey's commerce and beloved intercourse with Isis.
Inspired by the Isis suicide bomb attack on Kurdish volunteer relief workers in Sunuc, just over the border from ravaged Kobani in Syria, and a few subsequent violent protests by Turkish Kurds over Turkey's evident involvement, the not-so-bright Turkish P.M. Erdogan had an idea!
Go through the motion of dropping on Isis a few bombs that will not hit their purported targets and let the US use one Turkish airport. Then, you get on with the real business which is to seriously bomb the Kurds everywhere from the Iranian border to Kobani and points further west. This "master" plan, which may well have been given the green light by the equally dumb Pentagon, is now well underway.
The Turkish intention with this plan is to crush the Kurds and seize a 50 mile wide "buffer zone" from Syria and Iraq the whole length of its southern border. Net hoped for result? No Kurdistan and a new wonderful frontier with Isis.
The problem for Erdogan is that the Kurds either side of the Turkish border are not going to take his love of Isis and violent cretinism on their knees.