It’s clear that the western strategy of using north eastern Syria as a holding pen for jihadists and their families is approaching an end. But where will they end up? 
The SDF repeatedly told Britain to take back the likes of Shamima Begum and Jack Letts. Instead the UK stripped them of their citizenship. It was never a sustainable policy in the long term.
So where will the thousands of foreign IS prisoners end up? If the Kurds reach a deal with Damascus, then the regime will take them. Or Turkey might get to the prisons first. In the meantime IS fighters are escaping in the chaos; more will follow.
It almost goes without saying, but things are moving pretty fast in north east Syria.
