1979 to Now : How the Iranian Revolution Institutionalized Terrorism as State Policy
In February 1979, crowds in Tehran toppled one of the Middle East’s most powerful monarchies. The fall of Mohammad Reza Pahlavi, the Shah of Iran, and the rise of the cleric Ruhollah Khomeini transformed not only Iran’s domestic politics but the strategic landscape of the wider region. The Iranian Revolution was, first and foremost, a nationalist and religious uprising against authoritarian rule and Western influence. Yet its aftermath also marked a turning point in the way militancy, ideology and state power intersected in global politics.
Before 1979, political violence certainly existed: Palestinian groups carried out hijackings in the 1970s, nationalist insurgencies operated across Asia and Africa, and militant movements shaped conflicts from Northern Ireland to Latin America. But the Iranian revolution introduced something different: a state that openly framed its foreign policy in revolutionary ideological terms and actively cultivated armed movements abroad as part of that project.
The new leadership in Tehran argued that the revolution should not remain confined within Iran’s borders. Khomeini spoke of exporting the revolution across the Muslim world, particularly to populations he believed were oppressed by Western-backed regimes. To pursue that ambition, Iran established the Islamic Revolutionary Guard Corps (IRGC), a parallel military force tasked with protecting the revolution and expanding its influence beyond Iran’s borders.
Within the IRGC, a specialised unit later known as the Quds Force took on responsibility for external operations. Over the following decades, the force developed relationships with militant organisations, provided training and weapons, and helped coordinate allied groups in regional conflicts. According to annual reports by the U.S. Department of State, Iran has remained on the list of state sponsors of terrorism since 1984, a designation tied largely to these activities.
One of the earliest and most consequential examples was the creation of Hezbollah in Lebanon in the early 1980s. The group emerged amid the turmoil of the Lebanese Civil War, drawing ideological inspiration and material support from Tehran. Over time, Hezbollah evolved into a hybrid organisation: part militia, part political party, and part social welfare network. It also became a model for how armed movements could operate simultaneously within and beyond state structures.
Analysts often point to the 1983 bombing of U.S. Marine barracks in Beirut as an early sign of the new landscape. The attack, which killed 241 American service members, was attributed by U.S. investigations to militants linked to Hezbollah and supported by Iran. Whether interpreted as resistance or terrorism depends largely on political perspective, but the event illustrated how non-state actors backed by governments could shape geopolitical conflict.
The revolution’s influence extended beyond Lebanon. In later decades Iran developed ties with Palestinian militant groups including Hamas and Palestinian Islamic Jihad, providing financial and military support according to numerous intelligence assessments and research institutes. These relationships helped entrench a broader regional network of armed organisations aligned with Tehran’s strategic goals.
This approach—sometimes described as “proxy warfare”—allowed Iran to exert influence without direct confrontation with more powerful states. Instead of deploying large conventional forces abroad, Tehran invested in alliances with militias that could operate locally while advancing shared objectives.
Supporters of the Iranian government argue that this strategy emerged from necessity. The revolution was followed almost immediately by the Iran–Iraq War (1980–1988), a devastating conflict that left Iran internationally isolated and militarily weakened. From Tehran’s perspective, building networks of allied movements across the region created a form of deterrence against hostile governments and external powers.
Critics, however, contend that this policy helped normalise the use of militant groups as instruments of foreign policy. By empowering armed organisations operating outside state control, they argue, the revolution indirectly contributed to a wider proliferation of militias across the Middle East.
In the decades since 1979, the consequences have reverberated across multiple conflicts. Iranian-backed militias played roles in wars in Iraq, Syria, and Yemen, while Hezbollah became one of the region’s most powerful non-state military actors. Meanwhile, Iran’s adversaries—including United States, Saudi Arabia, and Israel—have responded with their own alliances and interventions, further entangling the region in proxy conflicts.
Four decades on, historians and political scientists still debate the revolution’s broader legacy. What is clear, however, is that 1979 altered the grammar of geopolitical conflict. The Iranian revolution did not invent terrorism, militancy or ideological insurgency. But it did demonstrate how a modern state could fuse revolutionary ideology with networks of armed groups abroad.
That model—part ideological movement, part geopolitical strategy—has shaped the Middle East ever since, and continues to influence the evolving relationship between states, militias and power in global politics.
