What Is Iran's Revolutionary Guard and How It Works

Born From Revolution

The Islamic Revolutionary Guard Corps (IRGC) was founded in April 1979, just weeks after the fall of Shah Mohammad Reza Pahlavi. While leftists, nationalists, and Islamists competed to shape the new republic, Ayatollah Ruhollah Khomeini created the Guard as a parallel military force loyal not to the state but to the revolution — and to himself. Its mission was to protect the theocratic system from both external threats and internal dissent, a role it has fulfilled ever since.

Unlike Iran's conventional army (Artesh), the IRGC answers directly and exclusively to the Supreme Leader. This chain of command, enshrined in Iran's constitution, makes the Guard the most politically powerful armed force in the country — one that operates with broad autonomy across military, economic, and intelligence domains.

Five Branches, One Mission

The IRGC commands at least 150,000 active personnel across five distinct branches:

• Ground Forces — organized into 31 provincial commands with significant regional autonomy
• Aerospace Force — controls Iran's ballistic and cruise missile arsenal
• Navy — operates fast-attack boats and anti-ship missiles, primarily in the Persian Gulf
• Quds Force — the elite external operations unit responsible for covert action and managing proxy relationships abroad
• Basij — a paramilitary volunteer militia with roughly 90,000 active members, used for internal security, crowd control, and ideological enforcement

The Quds Force, often described as Iran's equivalent of a combined CIA and Special Forces, is the branch most associated with Tehran's projection of power beyond its borders. It arms, trains, advises, and in some cases commands allied non-state groups across the Middle East.

The Axis of Resistance

Through the Quds Force, the IRGC has built a network of allied militias and political movements that Iran calls the "Axis of Resistance" — a constellation of groups united by opposition to the United States and Israel. Key partners have included Hezbollah in Lebanon, Houthi rebels in Yemen, Shiite militias in Iraq, and groups in the Palestinian territories.

This proxy strategy allows Iran to project force far beyond its borders without committing conventional troops. It also gives Tehran leverage in neighboring countries and bargaining chips in international negotiations — though critics argue these groups destabilize the entire region.

A Multibillion-Dollar Business Empire

The IRGC is not just a military organization — it is one of Iran's largest economic actors. Estimates of how much of the economy it controls range from ten to over fifty percent. According to Fortune, its annual revenue exceeds $12 billion, spanning construction, oil, telecommunications, banking, agriculture, and real estate.

The Guard's flagship economic arm is Khatam al-Anbiya Construction Headquarters, which employs roughly 25,000 engineers and staff. It has built refineries, railways, dams, and gas pipelines, and controls Tehran's main international airport. This vast economic footprint gives the IRGC institutional power that extends well beyond the battlefield — it creates patronage networks, employs tens of thousands, and generates revenue independent of the central government budget.

Terrorist Designation and Sanctions

The United States designated the IRGC as a Foreign Terrorist Organization in 2019 — the first time Washington applied such a label to a branch of another nation's government. The European Union, Canada, Australia, and several other countries have followed with their own designations or sanctions.

These measures target the Guard's financial networks, freeze assets, and restrict travel for its commanders. However, because the IRGC is so deeply woven into Iran's state apparatus and economy, sanctions have proven difficult to enforce comprehensively without harming ordinary Iranians.

Why the IRGC Matters

Understanding the IRGC is essential for understanding Iran itself. The Guard is simultaneously a military, an intelligence agency, an economic conglomerate, and a political kingmaker. It selects and vets candidates for public office, suppresses domestic dissent, runs proxy wars abroad, and operates some of the country's most critical infrastructure.

For policymakers, diplomats, and analysts, no discussion of Iran's nuclear program, regional conflicts, or internal politics is complete without accounting for the Revolutionary Guard — the institution that has, over four decades, grown from a revolutionary militia into one of the most powerful organizations in the Middle East.