>>34679
Judging by the quick movement of the SAA in the south, the rebels pulled out everyone they could from that area, leaving token forces there, just enough to make a little resistance. Not ten days earlier they shortened their lines in the north. This meant they could regroup units about Idlib, and with the Turkish reinforcement and supplies they were able to execute this push, maybe with a local numerical superiority, since the opposing forces were concentrated elsewhere.
Most likely their swan song.

Meanwhile corona is arriving to the scene. A destroyed country with weakened population, where the situation is already a humanitarian catastrophe, prime target.