Jabhat al-Nusra is back in the city of Aleppo, a year and a half after its big pullout, in mid-2014, in the wake of its resounding defeat by the Islamic State (IS) in the eastern region. This defeat forced Jabhat al-Nusra to regroup its forces to embark on the project of its leader, Abu Mohammed al-Golani, with the aim of establishing an Islamic emirate, which is what happened in Idlib province.