On August 22, the Syrian Arab Amy (SAA) opened a humanitarian corridor for civilians leaving the northern Hama pocket. According to the announcement, the humanitarian corridor was established in the area of Soran in northern Hama.
On August 21, the SAA and its allies liberated the key town of Khan Shaykhun and besieged remaining members of Hayat Tahrir al-Sham and other militant groups in the areas of Kafr Zita, Lataminah and Morek.
The fall of Khan Shaykhun became a major blow to Idlib militants that apparently believed that the so-called Idlib de-escalation zone was intended to allow them attacking SAA positions and prevent any possible SAA operations in the area. Ankara likely had a similar view.
However, the reality on the ground appeared to be a bit different.