Military Times 8/25/2019
Turkey’s defense minister said Saturday that military officials from Turkey and the United States have begun work to create a “safe zone†along its border in northeastern Syria.
Turkey's official Anadolu news agency quoted Defense Minister Hulusi Akar as saying that generals from Turkey and the U.S. had begun work in a joint operations center in the Turkish province of Sanliurfa to set up the zone and that joint helicopter patrols were set to begin.
Turkey has been pressing to control — in coordination with the U.S. — a 19-25 mile (30-40 kilometer) deep zone within civil war-ravaged Syria, running east of the Euphrates River all the way to the border with Iraq.
More:
https://www.militarytimes.com/news/pentagon-congress/2019/08/25/work-begins-on-syria-safe-zone-to-separate-turkey-and-us-allied-kurdish-forces/