A Syrian Kurd walks during a protest and sit-in against Turkey in Syria's Hasakeh province near the Turkish border, with the flags of Turkey seen across the border in the background. AFP
A Syrian Kurd walks during a protest and sit-in against Turkey in Syria's Hasakeh province near the Turkish border, with the flags of Turkey seen across the border in the background. AFP

Irreconcilable differences: why the US-Turkish accord over Syria might falter