Turkey-backed rebels close in on IS bastion Turkish forces and allied Free Syrian Army (FSA) fighters have begun an assault to drive Islamic State from the town of al-Bab in an operation that could foreshadow a push on the group’s de facto capital of Raqqa AREAS OF CONTROL Syrian regime and allies So-called Islamic State FSA / Turkish army Syrian Democratic Forces (SDF) / Kurdish YPG – U.S. ally seen by Turkey as affiliate of Kurdistan Workers’ Party (PKK), which has waged insurgency in Turkey’s southeast for 30 years Other rebel groups Detail map Mediterranean Sea JORDAN TURKEY SYRIA LEBANON Damascus IRAQ 200km 120 miles Turkish President Recep Tayyip Erdogan says goal is to seize control of al-Bab before targeting Manbij and Raqqa TURKEY Azaz Afrin Aleppo: Russian warplanes resume bombing of besieged rebel-held east after three-week pause Aleppo Idlib Jarabulus Al-Bab Kobane SYRIA Manbij Euphrates River Manbij: Recently captured from IS by YPG militia Tal Abyad U.S.-backed alliance led by YPG recently launched own offensive to retake Raqqa Ain Issa Raqqa 20km 12 miles Sources: IHS Conflict Monitor, wire agencies