The Bab al-Hawa crossing post sits under a low ridge on the Syrian-Turkish border, not far from the Turkish town of Reyhanli. There is a concrete canopy and a handful of buildings. It is important because of what lies not far away in the village of Babisqa — one of the main storage depots for the Supreme Military Council of the Free Syrian Army.
In the Syrian conflict, who controls crossings like Bab al-Hawa and depots like Babisqa is crucially important.
On the evening of Dec, 6, a series of events began, with ramifications threatening to be far-reaching. They point to a development many observers have been fearing: a dangerous new fracture opening within the fragmented ranks of Syria's opposition fighters, which threatens to pit the FSA against a powerful Islamist coalition. The ideological frontiers on the map of Syria's civil conflict are shifting.