On December 28, the Syrian army and Hezbollah, backed up by the Syrian Air Force, continued to storm Jabhat Fatah al-Sham and Ahrar al-Sham defense lines in the Wadi Barda region northwest of Damascus.
Government forces attacked militant positions at the villages of Souq Wadi Barada, Kafr al-Awamid, al-Husyaniyah and Baseema and made a series of flanking raids against militant group supply lines in these areas.
As result of these attacks, the Syrian army and Hezbollah were able to enter Baseema and seize a number of buildings there. According to local sources, a part of the militants holding a defense line there just fled to Dayr Qanoon and Kafr Az Zayt, where no clashes were reported.
Pro-government sources argue that about 20 militants were killed in the operation. Nonetheless, this number cannot be confirmed independently.