Turkish artillery fire began before dawn. By afternoon, F-16 fighter jets and howitzers were striking targets around the Syrian border towns of Tel Abyad and Ras al-Ayn. Operation Peace Spring, as Ankara named it, sent Turkish troops and their Syrian rebel allies across the frontier. Their stated objective was to create a 30-kilometer deep "safe zone," clearing the area of the Kurdish People's Protection Units, or YPG, which Turkey designates a terrorist group linked to the PKK.
The offensive followed a sudden and consequential phone call. On October 6, President Donald Trump told his Turkish counterpart, Recep Tayyip Erdoğan, that a small contingent of about 50 U.S. troops stationed as a buffer in the region would be withdrawn. This removed the primary obstacle to a Turkish incursion. The move blindsided the Pentagon and U.S. allies, effectively abandoning the Syrian Democratic Forces, a Kurdish-led coalition that had lost an estimated 11,000 fighters as the principal U.S. ground partner against the Islamic State.
The immediate humanitarian cost was severe. Within days, the United Nations reported at least 160,000 civilians displaced. Concerns mounted over the fate of detained ISIS fighters held in SDF-run prisons. The Kurdish administration, which had built a de facto autonomous region during Syria's civil war, faced an existential threat from a NATO army.
Turkey's operation achieved its territorial aim, securing a long strip of border land. The strategic consequence was a rapid, forced realignment. To counter the Turkish advance, the Kurdish forces struck a deal with the Syrian government of Bashar al-Assad and his Russian backers, inviting Syrian Arab Army troops into towns they had not held for years. The map of influence in northern Syria was redrawn in a week, cementing the erosion of U.S. credibility with local partners.