Andrei AKULOV: The support for Arab Sunni rebels in Syria will probably dwindle as pro-Turkey and pro-Saudi forces will have to choose sides. The US will face a very serious problem if Kurds in Syria and Turley are supported by the Saudi-led bloc. With no unified Saudi-led Sunni Arab bloc behind it, Washington will have less wiggle room during the talks on delineating de-escalation zones. The influence of the Russia-Turkey-Iran coalition in Syria will grow. All major actors involved in the ongoing conflict have taken sides, except Russia. It makes Moscow best suited for heading the mediation efforts to prevent the worst form happening.