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
Water politics in the Jordan River basin Syria dammed the river upstream. While the Yarmouk flows into the Jordan River, most of its water has been used in Syria and Jordan before reaching the river. Since the civil war broke out, hundreds of thousands of refugees have fled the area of southern Syria, many of whom were farmers. Most fled to refugee camps in Jordan. As a result, much more water now flows in the Yarmouk River and thus greater quantities of water are reaching the parts of the river that flow through Jordan, and later into Israel as well. The Syria-Lebanon-Palestine boundary was a product of