In announcing the withdrawal of the roughly 2,000 American troops in Syria, the Trump administration has, in one dramatic act, sought to recast the US-Turkey relationship, which has been in freefall over US partnership with the Syrian Democratic Forces (SDF) in the fight against the Islamic State.
The SDF is mostly composed of forces from the People’s Protection Units (YPG), the gendarmerie of the Syrian Kurdish Democratic Union Party (PYD), which Turkey considers a terrorist group linked to the Kurdistan Workers Party (PKK). The United States also considers the PKK a terrorist organization.