Idlib Governorate clashes (July 2017)
The Idlib Governorate clashes (July 2017) were a series of military confrontations between Ahrar al-Sham and Hay'at Tahrir al-Sham (HTS). During the clashes, Hay'at Tahrir al-Sham attempted to capture the Bab al-Hawa Border Crossing, causing concern for Turkey, which prefers Ahrar al-Sham to be in control of the crossing.
Source: Wikipedia — Idlib Governorate clashes (July 2017) (CC BY-SA 4.0)