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Other meanings of Iran–Iraq War

History

Iran–Iraq War

The Iran–Iraq War (1980–1988) was a protracted armed conflict between the Islamic Republic of Iran and Ba'athist Iraq, triggered by a border dispute and regional ambitions. It became one of the deadliest wars of the late 20th century, with estimates of up to one million casualties and widespread use of chemical weapons.

1980–1988
Duration
8 years
~1,000,000
Estimated deaths
Combined military and civilian
~$1.1 trillion
Economic cost
Combined direct and indirect
~100,000
Chemical weapons casualties
Iranian victims of Iraqi gas attacks
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Origins and outbreak

The war's roots lay in the long-standing Shatt al-Arab waterway dispute, which the 1975 Algiers Agreement had resolved in Iran's favor. After the 1979 Iranian Revolution, Saddam Hussein saw an opportunity to reclaim the waterway and topple the new regime, fearing its Shia revolutionary ideology would inspire Iraq's Shia majority. On September 22, 1980, Iraq invaded Iran, aiming for a quick victory, but met fierce resistance and the conflict soon bogged down into a war of attrition.1

2

Major phases and tactics

The war evolved through distinct phases: Iraq's initial offensive, Iran's counter-offensives (such as Operation Ramadan in 1982), and the subsequent 'Tanker War' against shipping in the Persian Gulf. Iran employed human-wave attacks, while Iraq used extensive artillery and, from 1983, chemical weapons, including mustard gas and nerve agents, against Iranian troops and Kurdish civilians. The international community's response was muted, with the UN only condemning the use of chemical weapons in 1986.

3

International involvement and endgame

Both sides received external support: Iraq was backed by the Soviet Union, France, and Gulf Arab states, while Iran relied on Syria, Libya, and, covertly, Israel. The United States tilted toward Iraq, providing intelligence and logistical aid, culminating in the USS Stark incident in 1987. The war ended with UN Security Council Resolution 598, accepted by both sides in August 1988, after Iraq's recapture of the Fao Peninsula and Iran's exhaustion.

4

Lesser-known aspects

Beyond the headlines, the war saw the first use of ballistic missiles in a regional conflict, with 'War of the Cities' exchanges. Iran's use of child soldiers, known as 'Basij', was a distinctive feature. The conflict also led to the creation of the UN Iran-Iraq Military Observer Group (UNIIMOG) to monitor the ceasefire. The war's legacy includes the unresolved issue of chemical weapons compensation and the ongoing dispute over the Shatt al-Arab, which was only settled in 1990 when Iraq accepted the Algiers Agreement.2

Glossary

Shatt al-Arab
River formed by the confluence of the Tigris and Euphrates, forming the Iran-Iraq border.
Algiers Agreement
1975 treaty that set the border along the thalweg, later abrogated by Iraq.
Basij
Iranian volunteer militia, often including teenagers, used in human-wave attacks.
Tanker War
Phase of the conflict targeting oil tankers in the Persian Gulf.
UNIIMOG
United Nations Iran-Iraq Military Observer Group, deployed after the ceasefire.

This article focuses exclusively on the 1980–1988 conflict between Iran and Iraq.