Much media attention has recently focused on a statement issued by al-Qaeda's central command on the Afghanistan-Pakistan border under Ayman al-Zawahri’s leadership, declaring that the Islamic State of Iraq and al-Sham (ISIS) has no relationship with the central leadership of al-Qaeda.

On the basis of this development, one might think that ISIS, which has hitherto been described in the media as an “al-Qaeda affiliate,” may lose ground and standing in the eyes of jihadis and their supporters both inside and outside Syria. Indeed, in Jordan, the Salafist-jihadist movement has come firmly on the side of Jabhat al-Nusra against ISIS, maintaining strong links with Jabhat al-Nusra in the southern Syrian border province of Daraa, which lacks an ISIS presence.

One should also note the extent to which tensions on the ground have grown between ISIS and Jabhat al-Nusra. Beginning with infighting between Jabhat al-Nusra and ISIS in the city of Raqqa, clashes have since spread further out east.

On Feb. 7, Jabhat al-Nusra released a statement criticizing ISIS in Deir Ezzor province and the wider east of Syria, pointing to long-standing grievances like ISIS’ besieging the headquarters of Jabhat al-Nusra in the Hassakeh province locality of Ash Shaddadi, despite their cooperation against Kurdish and regime forces.