Borzou Daragahi reports: Abu Mostafa was elated. Backed by Turkey’s armed forces, his Free Syrian Army unit racked up a series of rare victories against ISIS fighters in northern Syria this week, retaking five villages from the jihadi group on Tuesday.

Turkey’s intervention in Syria is meant to push ISIS and Kurdish militants away from a narrow strip of the northern Aleppo province along its southern borders. But Abu Mostafa, a nom de guerre, and the fighters from his Abu Bakir al-Sadeeq brigade already harbor grander ambitions.

“We are aiming for more than those areas, hopefully even the liberation of all of Syria and not only Aleppo,” he told BuzzFeed News this week over a spotty internet connection. “The Turks do not command us.”

A few weeks after a surprise ground incursion, dubbed Operation Euphrates Shield, Turkish armed forces and allied Syrian rebel groups managed to carve out a long-sought buffer zone along Syrian territory to prevent cross-border infiltrations by jihadi and Kurdish militant organizations, while designating a potential safe zone for civilians fleeing the conflict. The Turks launched a ground operation, backed by Turkish and US air support, after reassuring Russia and Iran that their aims were solely to roll back the territories under the control of ISIS fighters and Kurdish-led fighting groups with separatist agendas.

But Turkey’s calibrated strategy depends in part on both limiting its own involvement and reining in the ambitions of its FSA partners, whose battles against ISIS and Kurdish-led militias in northern Syria are secondary to their goal of bringing down the regime of Bashar al-Assad. [Continue reading…]