This is the pressing question as over the weekend US helicopters were filmed hovering above the potential battle lines, even after widespread reports of a US troop pullout from the area and following Kurdish militias quickly calling on the Syrian Army's help to prevent a Turkish invasion and massacre of the province's Kurdish inhabitants.

Following a high level Turkish defense delegation visit to Moscow on Saturday, which involved talks between Russian Foreign Minister Sergei Lavrov and his Turkish counterpart Mevlut Cavusoglu, RT reports the future of the Syrian-Turkish border region is on the line. This as many in Washington worry that a rapid American draw down will create a power vacuum :

Moscow and Ankara are to "define certain areas of influence and understand who will control what." There are residual groupings of Islamic State (IS, formerly ISIS/ISIL) fighters who are ready to exploit any no power vacuum in northern Syria...

Turkish ambitions to reinstate full control over the northern Syria may not be an option for Damascus, but "it is also important for Russia to not lose Turkey as an ally."