The Afghan Rebels weren’t particularly well supplied or unified either, and yet they still managed to hold out in the mountains against the Soviets for almost a decade.

Of course, the mountains in Northern Syria are much less ragged than those of Afghanistan, and the Rebels in the North are probably more exhausted and demoralized as well.

The Afghans still received received regular supplies from Pakistan and had camps there too. Similarly, the strength of the Idlib rebels will be highly dependent on what Turkey does.