Iranian Revolution
1979 Islamic Revolution that created Iran's theocratic state, now the ideological engine of the 2026 war.
Last refreshed: 30 March 2026
Is the Islamic Republic about to become the dynasty the revolution destroyed?
Latest on Iranian Revolution
- 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.
- 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.
- Is Mojtaba Khamenei the next Supreme Leader?
- Mojtaba Khamenei, son of Supreme Leader Ali Khamenei, is widely regarded as the leading candidate for succession. His installation would create the first hereditary Supreme Leader, a direct contradiction of the revolutionary principle that ended dynastic rule in 1979.
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. 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.
