Answer:
The Shatt al-Arab is a strategic waterway.
Step-by-step explanation:
- The Shatt al Arab is a river that is 200 km long and is formed by the confluence of the Euphrates and Tigris and has a basin area of the 884,000 km. The southern part of this river constitutes a border between Iraq and Iran as it discharges down to the pacific gulf.
- Conflicting territorial claims over the river have been made between Iraq and Iran that is based on the river.
- In 1937 a treaty was recognized to lower the watermarks on the eastern side of the Shatt al-Arab when Iraq got control over the entire waterway that required all the ships in the al-Arab to fly in the Iraqi pilot, and that needed Iran to pay tolls to Iraq.