Turkey and Russia have long agreed to divide Idlib.

Russian political analyst Sergei Markov told Axar.az.

According to him, no matter either formal or informal, the parties have agreed on this:

“The Syrian army, led by Bashar al-Assad, will get control of several areas of Idlib. It will mainly cover strategic M4-M5 highways connecting Idlib to Aleppo, Latakia, and Damascus.

I suppose that in Idlib, in the north of Syria, there will be a de-escalation zone as between the YPG and the Turks. The security line will be 30 km long, with the agreement of the Turkish side."

Syrian troops attacked the Turkish army, killing four soldiers and wounding 9. As a result of the Turkish army's reaction, 46 regime troops were killed.