Turkish Defense Minister Hulusi Akar met late Wednesday with the U.S. special envoy to Syria in Istanbul. 

Akar and James Jeffrey discussed the latest developments in Syria, particularly the situation east of the Euphrates, Turkey’s Defense Ministry said in a statement

Turkey has long opposed U.S. cooperation with the PKK/YPG against Daesh forces, saying that using one terror group to fight another makes no sense.

As the U.S. continues its preparations to draw down its presence in Syria, Turkey has aired its concern about Washington’s support for YPG/PKK terrorists in northeastern Syria.

Jeffrey has spoken on this concern, saying earlier this month that the U.S. will continue working on an established safe zone along the Turkish-Syrian border in which YPG/PKK forces would withdraw to ensure it remains free of any threat to Turkey.