Qualla: 1974-1975 Shatt al-Arab Conflict

1974-1975 Shatt al-Arab Conflict: Introduction

Sat, 28 Feb 2026 00:00:00 GMT

Where does one country's river become another's? The question sounds academic until armies start shooting over the answer. The Shatt al-Arab, formed by the confluence of the Tigris and Euphrates rivers, flows roughly 200 kilometers to the Persian Gulf along a stretch of the Iran-Iraq border. For decades, this murky waterway generated more diplomatic crises per kilometer than almost any other body of water on Earth. In 1974, the argument turned lethal. Over the course of a year, Iranian and Iraqi forces fought a series of cross-border clashes that left more than a thousand people dead, drew in Kurdish rebels, American intelligence agencies, and Israeli arms suppliers, and ended with a deal signed in Algiers that would hold for exactly five years before collapsing into one of the longest conventional wars of the twentieth century.

1974-1975 Shatt al-Arab Conflict: A Border Drawn in Water

Sat, 28 Feb 2026 00:00:00 GMT

The roots of the conflict reached back generations. Under Ottoman rule, the entire waterway had belonged to what would become Iraq. But Iran had contested this arrangement since the early twentieth century, arguing that international law required the border to follow the thalweg,...

1974-1975 Shatt al-Arab Conflict: Proxy Wars and Tank Columns

Sat, 28 Feb 2026 00:00:00 GMT

The actual fighting grew out of a web of proxy conflicts. Iran had been arming Iraqi Kurdish rebels fighting for independence from Baghdad, working alongside the United States and Israel. A 1973 raid on the Iraqi embassy in Pakistan exposed covert Iraqi support for militants in B...

1974-1975 Shatt al-Arab Conflict: The Algiers Bargain

Sat, 28 Feb 2026 00:00:00 GMT

Facing military stalemate and a Kurdish rebellion it could not suppress, Iraq chose diplomacy. In March 1975, Saddam Hussein and the Shah of Iran met in Algiers, mediated by Algerian President Houari Boumediene. The resulting agreement split the difference on the waterway: Iraq c...

1974-1975 Shatt al-Arab Conflict: Five Years to War

Sat, 28 Feb 2026 00:00:00 GMT

The 1979 Iranian Revolution changed everything. The Shah who had brokered the Algiers Agreement was overthrown, replaced by Ayatollah Ruhollah Khomeini's Islamic Republic. Iraq's Ba'ath Party feared Khomeini would incite Iraq's Shia-majority population to revolt. When Iranian for...