ISWNews Analysis Group: After a day of ceasefire between Tahrir al-Sham and Syrian National Army (Jaish al-Watani) militants, clashes between these groups resumed in the north of Aleppo and several areas were captured by Tahrir al-Sham militants.

On January 20, 2018, Turkey launched an operation called the Olive Branch in the Afrin region in northwestern Syria which eventually led to the complete occupation of the Afrin region.