The Manbij offensive, code-named Operation Martyr and Commander Faysal Abu Layla by the SDF, was a 2016 military offensive operation by the Syrian Democratic Forces (SDF) to capture the city of Manbij from the Islamic State of Iraq and the Levant (ISIL), and eventually, the ISIL-held areas through Al-Bab to Herbel, in the area referred to as the "Manbij Pocket" in the northern Aleppo Governorate. The main goal of the offensive was to cut off ISIL's last supply routes from the outside world, and to prevent ISIL from moving fighters out of Syria to carry out terrorist attacks in Turkey and Europe. During the offensive, the US-led coalition conducted over 55 airstrikes in support of the SDF. After the conquest of Manbij city on 12 August, the SDF announced that the offensive would continue un