Turkey’s president says it will begin a new military operation against U.S-backed Kurdish fighters in Syria “within a few days.”

Addressing a defense industry meeting in Ankara on Wednesday, Recep Tayyip Erdogan said the target of the operation would be the Syrian Kurdish militia known as the People’s Protection Units, or YPG — which Turkey views as a terrorist group linked to the insurgency within its borders.

 

The YPG is the main component of a Kurdish-led militia that rolled back the Islamic State group with the help of the U.S.-led coalition. U.S. troops are deployed with the Kurdish fighters in northeastern Syria, in part to prevent clashes with NATO ally Turkey.

 

Turkish forces have already waged two cross-border campaigns against Syrian Kurdish forces, in 2016 and earlier this year.