On January 20, pro-government forces, led by the Tiger Forces, entered the strategic Abu al-Duhur airbase [the video is above] and liberated the villages of Um Tina. Mazyunah, Aliya and Um Wadi in eastern Idlib.
In this way, the Syrian Arab Army (SAA) and its allies fully encircled the remaining forces of Hayat Tahrir al-Sham and ISIS in eastern Idlib/northeastern Hama.
According to pro-government sources, the Tiger Forces already liberated the Abu al-Duhur airbase itself. However, this still has to be confirmed by photos or videos.