The US-backed, Kurdish-led Syrian Democratic Forces (SDF) announced Oct. 31 that they have temporarily halted their campaign against ISIS after they were bombarded for the second time in four days by Turkish forces. With Turkish President Recep Tayyip Erdoğan pledging to "wipe out" the Kurdish YPG militia, calling them "terrorists," his forces in northern Syria attacked YPG positions east of the Euphrates River Oct. 28 and then again two days later. The YPG, or People's Protection Units, constitute the central pillar of the US-backed SDF, which Washington continues to support with some 2,000 embedded troops. At least 10 YPG fighters were reported killed in the Turkish shelling of territory in the Kurdish autonomous canton of Kobani. The SDF said in a statement: "Turkish attacks in the north and ISIS attacks in the south against our troops had forced us to stop our current operation temporarily against ISIS in [its] last pocket... We call [upon] the international community to condemn the Turkish provocations in the safe areas in Syria, and we demand our partners in the International Coalition to show a clear attitude and stop Turkey from launching attacks on the region." The statement claimed the YPG responded to the shelling with artillery fire, destroying a Turkish military vehicle and border post. (EA Worldview, Haaretz)

The Euphrates River has heretofore been a de facto border dividing northern Syria  between the Turkish buffer zone to the west and the US influence to zone to the east, where the Kurdish forces were free to operate.