U.S. Vice President Mike Pence emerged Oct. 17 from a marathon meeting in Ankara with an agreement to ostensibly end the bloodletting in northeastern Syria. But while the deal provides a potential foundation for the stabilization of the rocky relationship between the two NATO member states, the agreement is extremely fragile and susceptible to collapse at any moment. What's in the Deal After more than four hours of negotiations between the Americans and the Turks, the sides reached an agreement to halt the fighting between Turkey and the Syrian Democratic Forces (SDF) for 120 hours, giving time for the SDF to theoretically disengage from a 32-kilometer-deep (20 miles) zone along the Turkish border that the Turkish military would subsequently administer.