As the Turkish-Syrian dialogue advances and the prospect of Ankara pulling the plug on its Syrian allies looms large for the rebels, Hayat Tahrir al-Sham (HTS), the jihadi outfit holding sway in Idlib, appears eager to take advantage of the confusion in the rebels' ranks and expand its control.

Forces affiliated with the HTS-led al-Fatah al-Mubin operation room have mounted attacks along lines of contact with government troops in southern Idlib, northwestern Aleppo and northeastern Latakia, using infiltration tactics, according to Syrian press reports. Clashes reportedly intensified this week in the Jabal al-Zawiya area in southern Idlib, with al-Qaeda-linked groups such as Firqat al-Ghuraba and Ansar al-Tawhid also joining the fighting. The Syrian army sent reinforcements to several areas in southern and eastern Idlib as well as to Base 46 and a couple of towns to the west of Aleppo. 

Earlier this week, Turkey also moved reinforcements to the Idlib countryside and northwestern Aleppo, according to the reports. Despite progress in contacts with Damascus, last week Ankara renewed its threat of a fresh ground operation against Kurdish-held areas, apparently as part of a pressure strategy. 

Should the military escalation on the ground continue as Turkey presses ahead with fence-mending with Damascus, rebels from the Turkish-backed Syrian National Army (SNA) and other armed factions might gravitate to HTS, which stands out as the best organized and disciplined outfit, both on the battleground and in terms of civil administration via the so-called Salvation Government it has established in Idlib.