Tigris–Euphrates river system Tigris–Euphrates river system The Tigris and Euphrates, with their tributaries, form a major river system in Western Asia. From sources originating in eastern Turkey, they flow by/through Syria through Iraq into the Persian Gulf. The system is part of the Palearctic Tigris–Euphrates ecoregion, which includes Iraq and parts of Turkey, Syria, Iran, Saudi Arabia, Kuwait, and Jordan. From their sources and upper courses in the mountains of eastern Anatolia, the rivers descend through valleys and gorges to the uplands of Syria and northern Iraq and then to the alluvial plain of central Iraq. The rivers flow in a south-easterly direction
Operation Euphrates Shield that they had captured the village. Before clashing with the SDF, the FSA had captured half a dozen villages. On early 25 August, more than 20 Turkish tanks crossed into the Syrian border. The U.S. foreign minister later informed his Turkish counterpart that the YPG had started withdrawing to the east of the Euphrates river. A spokesman for Operation Inherent Resolve later announced that the SDF had withdrawn across the Euphrates river in order to prepare for the Raqqa campaign. The YPG later separately announced it had withdrawn to the east of Euphrates and said all military command along with