Russia's military response to Turkey's ?stab in the back? has arrived
Moscow isn't likely to bomb Turkish military facilities, but it has other ways of undermining Ankara's presence in Syria: Russia is now aiding Kurdish rebels ? a group that has been labeled as ?terrorists? by Turkey.
The Syrian Kurdish forces (YPG) are considered extremely valuable in the fight against ISIS. They have previously received support from the United States, although western cooperation with the group has been limited in order to avoid ruffling Erdogan's feathers. But for Russia, upsetting Erdogan is not really an ?issue?.
In layman's terms, this new alliance could be a fatal blow to Turkey's geopolitical aspirations in Syria (not to mention Russia's de facto no fly zone, thanks largely to a little friend called ?the S-400?):
continued
The Game Just Changed: Russia Allies With Kurds to Push Turkey out of Syria