The US forces in northern Syria long served as a de facto buffer force, positioned in between Turkey and both the Syrian government and Syrian Kurds. With US forces withdrawing, Russia is taking over that role, moving into that space the US formerly filled. For Russia, it’s a bit more pro-active than what the US was doing. Russia describes its forces as patrolling along the “line of contact” between Turkey and Syria, and that’s a key aspect of why they are there. In addition to patrols, Russia has also taken over at least one former US base in the area, one hastily abandoned by US forces....
