Background

The Iranian Revolution of 1979 overthrew Shah Mohammad Reza Pahlavi and ended 2,500 years of Persian monarchy. Led by Ayatollah Ruhollah Khomeini, it replaced the Pahlavi state with the Islamic Republic, codifying Velayat-e Faqih (guardianship of the jurist) as the constitutional basis for clerical rule. The Islamic Revolutionary Guard Corps (IRGC) was founded in the aftermath to defend the new order, creating a parallel military-economic structure that controls vast sectors of the economy through the Bonyad system of revolutionary foundations.

The revolution's legacy is inseparable from the 2026 conflict, now approaching its fifth month since Iran's 28 February outbreak. Iran's closure of the Strait of Hormuz, enabled by the IRGC's naval doctrine, triggered what the IEA called the largest supply disruption in oil market history, with Gulf output down at least 10 million barrels per day. The shockwave reached the threshold Oxford Economics assessed would tip the world into recession.

The revolution's deepest tension now centres on succession. The 2026 Supreme Leader Succession looks set to install Mojtaba Khamenei as the first hereditary leader, confronting the republic with a structural contradiction: a system built to end dynastic rule may be creating a new one.

Common Questions

Reference

How does the Iranian Revolution explain the 2026 Iran war?

The revolution created the IRGC and the Velayat-e Faqih system that control Iran's military and Foreign Policy. The 2026 war is the culmination of that revolutionary project: Iran's Strait of Hormuz closure caused the largest oil supply disruption on record, a capability built directly from revolutionary doctrine and IRGC naval power.Source: IEA

What is Velayat-e Faqih?

Velayat-e Faqih (guardianship of the jurist) is the constitutional doctrine introduced by Khomeini that grants a senior Islamic jurist supreme political authority over the state. It is the legal foundation of the Islamic Republic and the source of the Supreme Leader's power.

What was the Iranian Revolution?

The 1979 Iranian Revolution, also called the Islamic Revolution, was a popular uprising that overthrew Shah Mohammad Reza Pahlavi and replaced Iran's monarchy with an Islamic Republic under Ayatollah Ruhollah Khomeini. It established Velayat-e Faqih, clerical rule by a Supreme Leader, as Iran's constitutional basis.

What did the Iranian Revolution create that is fighting today?

The IRGC was founded in 1979 specifically to defend the revolution. It is the force currently executing Iran's military strategy, including the Hormuz closure that the IEA declared the largest supply disruption in oil history.Source: IEA

How the World Sees Them

Iran

The revolution is the state's founding myth and legal basis; all political authority flows from the Supreme Leader's religious mandate. The 2026 war has exposed the cost: oil revenues have collapsed and popular support for the theocratic model is under strain.

China

Beijing cultivates Iran as a strategic partner despite the theocratic ideology; it secured a private Hormuz passage for Chinese-flagged vessels, treating the revolutionary state as a negotiating counterpart rather than a pariah.

Israel

Israel regards the revolution as the origin event of Iranian regional ambition and proxy warfare, from the founding of Hezbollah to the IRGC Quds Force's covert operations. The 2026 strikes were framed as dismantling that architecture.

United States

Washington has viewed the revolution as a hostile rupture since the 1979 hostage crisis; regime change has been an undeclared objective across multiple administrations. The 2026 military campaign is the most direct expression of that decades-old posture.

Gulf Arab states

Saudi Arabia and the Gulf monarchies feared the revolution's Shia export model for decades and quietly supported Iraq during the 1980s war. The 2026 conflict has placed their oil infrastructure and energy revenues in the crossfire.