As Turkey and the United States continue to spar over the imminent arrival of Russian made S-400 missiles on Turkish soil, and more recently over Turkish moves in the eastern Mediterranean, a long-running quarrel over US support for Kurdish militants in Syria seems to have been put on the back burner — for now.
It may be that the NATO allies are so seized with the S-400s — with the United States threatening to unleash an array of sanctions and Turkey refusing to blink — that there is little room to squabble over Syria. More likely it is because their efforts to agree on a proposed safe zone along the Syria-Turkey border have hit a wall.