[15] Tensions between the two groups initiated on 4 October, when Ahrar al-Sham captured a Jund al-Aqsa member accused of being a cell for the Islamic State of Iraq and the Levant.

[12] As a reaction to the clashes, several other rebel groups signed a statement announcing that they would side with Ahrar al-Sham against Jund al-Aqsa in the conflict.

The signatory groups were:[16] Jaysh al-Islam, Suqour al-Sham Brigade, Sham Legion, Army of Mujahideen, Fatah Halab, and Fastaqim Union.

[10] The next day, in an attempt to end the conflict and find protection, Jund al-Aqsa pledged its allegiance to the al-Qaeda-affiliated al-Nusra Front (also known as Jabhat Fateh al-Sham).

[20] In January 2017, the al-Nusra Front launched several coordinated attacks against Ahrar al-Sham headquarters and positions in the northern Idlib Governorate, near the Bab al-Hawa Border Crossing.