Ayn al-Arab: Russian military police began patrols on part of the Syrian border on Wednesday, quickly moving to implement an accord with Turkey that divides control of northeastern Syria.
The Kremlin told Kurdish fighters to pull back from the entire frontier or face being 'steamrolled' by Turkish forces.
Turkish President Recep Tayyip Erdogan echoed those warnings, saying his military would resume its offensive against Kurdish fighters if the new arrangements are not carried out.
Erdogan and Russian President Vladimir Putin reached an agreement on Tuesday that would transform the map of northeast Syria, installing their forces along the border and filling the void left by the abrupt withdrawal of American troops.
The Kurdish fighters, who once relied on the US forces as protection from Turkey, were given a deadline of next Tuesday evening to pull back from border areas they have not already left.