IS pulls back from more areas of Aleppo countryside

IS continue pulling back from al-Bab city after the regime advanced and reached Areas controlled by Menbj military council, and it stopped the Turkish forces and rebels from advancing towards IS controlled areas in the eastern countryside of Aleppo, the IS pulled back from the villages in the east, what will enable the regime forces to continue its operation which started in the 17th of January 2017, when it were able to advance inthe northern eastern and eastern countryside