A few hours later more news: The M5 has been cut North of Seraqib, in the village Al Duweir, from South-Eastern side. That means, Seraqib is almost encircled now.
So, the usual technique used to get greater towns - the town will be almost encircled, leaving one road for running away.
The information from terrorist side is that the terrorists have essentially left the town and the government forces are in the process of taking it. There have been even claims that it has already been taken, but the Syrian side up to now rejects such claims.
Whatever, Seraqib will be taken in short time, so this is a good moment to see what has been reached by "minor border skirmishes" (copyright
CptBrk) during the last months. Here, the more yellowish color marks the gains reached during the period from the second half of December up to now:
In a greater picture, this looks like this:
Here, the advances of the first part of the actual offensive, during the second half of December, of course count as 2019, and the large advances of territory of the last three-four days have not been incorporated. The territory gained 2018 looks impressive here, but one should not forget that a large part of it is almost desert and contained neither important towns nor important communication lines.
In this sense, the 2019 gain of Khan Sheikhun and the part of Hamas South of it was more important than that large territory because it was part of the key territory, the power base. And the same holds for the region liberated during the last two months - this is key territory of the enclave.
What other parts of the enclave count as such key territory? Certainly Idlib itself and some of its environment, including Arihah, which is immediately endangered now. Then, the region around the remaining part of the M5, together with the part NW of Aleppo around Anandan. And, last but not least, Jisr al Shugur.
What remains is the Al Ghab valley South of Jisr al Shugur, which is economically important because of its agriculture, but useless from a military point of view, and otherwise almost useless mountainous regions. Those near the Turkish border may be left for quite long time to some Turkish-controlled gangs, for political reasons, similar to the small region in the North of Syria taken by the Turks from the Kurds last year, even if everything else goes nicely for Assad. Simply, Erdogan wants to get rid of the Syrian refugees on Turkish territory, and that territory in the North is simply too small for them all.
Given that the Syrian army has already entered the M5 North of Saraqib, the M5 and its environment will be cleared anyway during the next time. After this, the environment of Aleppo will have the highest priority for Assad. But it seems also impossible for Assad to leave Idlib itself to the terrorists for some longer time. With Idlib under government control, Jisr al Shugur would be the natural next target.
This natural order by priority for Assad may be changed pragmatically in dependence of the military ability, the weakests points of defense of the terrorists, Russian interests (their airbase is regularly attacked by drones from the Jisr al Shugur region) and various politics.