代尔祖尔省
The fighting soon spread to the Deir ez-Zor Governorate, and tensions also rose between Ahfad al-Rasul and the al-Nusra Front. In November 2013, Saddam al-Jamal, commander of Ahfad al-Rasul's Allahu Akbar Brigade, defected to ISIL. Following al-Jamal's defection, 4 subunits of Ahfad al-Rasul also defected to ISIL.