The river that flows through Syria into Iraq and on to the Persian Gulf is the Euphrates River.
The river flows south from the mountains of southeastern Turkey through Iraq
Tigris or Euphrates.
The river you are referring to is the Euphrates River. It originates in Turkey and flows through Syria and Iraq before emptying into the Persian Gulf. It is one of the two main rivers in Mesopotamia, the other being the Tigris River.
It flows through Turkey, Syria, and Iraq.
Turkey, Syria, and Iraq
Tigris flows through Turkey, Syria and Iraq
The headwaters of the Tigris River is in Turkey, and the Tigris River flows through Iraq to the Persian Gulf.
Tigris is a river that flows through Turkey and Iraq. It is a historic river which along with Euphrates river defines the ancient land of Mesopotamia. Baghdad is also located on the banks of Tigris.
The Tigris River is located in Iraq and Turkey.
Mesopotamia
The Tigris River