Russia moved to fill the void left by the
United States in northern
Syria on Tuesday, deploying troops to keep apart advancing Syrian government forces and
Turkish troops.
At the same time, tensions grew within NATO as
Turkey defied growing condemnation of its invasion from its Western allies.
Now in its seventh day, Turkey's offensive against Kurdish fighters has caused tens of thousands to flee their homes, has upended alliances and is re-drawing the map of northern Syria for yet another time in the 8-year-old war.