The Shatt al-Arab waterway is a strategic waterway leading to historical disputes between Iran and Iraq.
The likely reason why the governments of Iran and Iraq have historically had disputes over rights to the Shatt al-Arab is because the Shatt al-Arab is a strategic waterway for both countries.
The Shatt al-Arab serves as an important maritime boundary, granting access to the Persian Gulf, making it vital for trade and transportation for both nations.
Control over this waterway has been a point of contention leading to conflicts and wars between Iran and Iraq.
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