Kurdish fighters are strengthening their control in the northeastern corner of syria

Kurdish fighters are strengthening their control in the northeastern corner of Syria since regime forces withdrew last year.
Syria's Kurds may say they are just preventing other groups from imposing their will but this new front is just another fault line in Syria's war.
It appears that Syria's opposition forces are becoming increasingly divided.
Al Jazeera's Zeina Khodr reports from Antakya, Turkey.