Islamic Revolutionary Guard Corps

The IRGC is part of Iran's official military but operates separately from the Artesh. Its five primary branches are the Ground Forces, Air Force, Navy, Basij, and Quds Force.[1] In addition to conventional and asymmetric military functions, it exercises domestic-security responsibilities, influences Iranian politics, controls substantial economic interests, and coordinates support for armed groups abroad.[1][1]

The Guards were formed in May 1979 as an ideologically committed force intended to protect the political outcome of the Islamic Revolution from internal and external enemies.[5] Their creation consolidated unofficial militias that had formed during the uprising to protect demonstrators from the Shah's security forces. Prime Minister Mehdi Bazargan's provisional government accepted the argument that a centralized Revolutionary Guard was needed partly to counter the possibility of a military coup.[5]

The IRGC's mission was distinct from that of Iran's regular military. Testimony at a 2015 U.S. House Foreign Affairs Committee hearing described the Artesh as responsible for protecting Iran's territorial integrity, while the IRGC was assigned to protect "the revolution and its achievements in the abstract."[2]

Ayatollah Ruhollah Khomeini formed the organization to safeguard the new revolutionary government.[6] The IRGC answers directly to the Supreme Leader rather than to Iran's elected civilian institutions, a command relationship maintained under Khomeini's successor, Ayatollah Ali Khamenei.[1][2]

The Iran-Iraq War began with Iraq's invasion of western Iran in September 1980 and lasted eight years. Throughout the conflict, the Guards remained a separate and rival military force alongside the regular army rather than being absorbed into it.[5] The institution later developed separate ground, air, naval, intelligence, and external-operations capabilities.[1][4]

The Basij, a paramilitary volunteer force formed in November 1979, supplied hundreds of thousands of recruits during the war.[5] Iranians aged sixteen and older could join and receive small-arms training. Most volunteers were young men from lower-income urban or rural backgrounds, although women participated in some units.[5]

The wartime mobilization entrenched the relationship between the IRGC and the Basij. Since 1989, both organizations have generally treated the maintenance of the revolution's ideological purity as part of their mission.[5]

The IRGC's five primary branches are the Ground Forces, Air Force, Navy, Basij, and Quds Force. It also has a counterintelligence directorate, representatives of the Supreme Leader throughout its structure, and detention facilities.[1][7] U.S. Treasury documentation identifies an IRGC-controlled ward at Tehran's Evin prison.[6]

Personnel estimates vary by source and date. The State Department's 2019 terrorism report estimated that the IRGC had more than 125,000 troops.[1] A 2015 congressional hearing cited between 120,000 and 150,000 active-duty members, while the American Jewish Committee later estimated approximately 190,000 active personnel.[2][4]

The Basij functions as a domestic enforcement arm involved in suppressing dissent and conducting morality policing.[8] Treasury documentation also attributed attacks on university students, detainee abuse, and violence against peaceful protesters after the disputed 2009 election to the Basij.[6]

The aerospace force runs Iran's ballistic-missile program, while the IRGC Navy operates separately from the conventional navy and conducts operations around the Strait of Hormuz.[8] The organization also maintains cyber capabilities used for military and commercial espionage and propaganda.[8] Treasury has linked the broader IRGC to development and testing of ballistic missiles, including the Shahab-3.[7]

The Quds Force is the IRGC's elite external-operations branch and Iran's principal mechanism for coordinating support to armed groups abroad.[4][3] Missions described in congressional testimony include covert action, intelligence collection, financing and organizing pro-Iranian armed groups, support for assassinations, covert diplomacy, overseas deployments, and the use of religious, cultural, charitable, and commercial organizations to build influence networks.[2]

U.S. reporting describes assistance delivered through the IRGC and Quds Force as including funding, weapons, training, technology transfer, advanced conventional weapons, guidance, and operational direction. Identified recipients include Hezbollah, Hamas, Palestinian Islamic Jihad, Kata'ib Hizballah, and the al-Ashtar Brigades.[1] The State Department has also reported Iranian weapons, training, and other support for the Houthi movement in Yemen.[3]

Hezbollah is among Iran's closest regional partners. The Congressional Research Service describes it as the Iran-backed group most closely resembling a proxy and notes that it was founded in 1982 with critical assistance from the new Islamic Republic.[9] The American Jewish Committee identifies Hezbollah as responsible for attacks against Americans, Israelis, and Jewish communities, including the 1994 AMIA Jewish community center bombing in Buenos Aires.[10]

The State Department reported that Iran acknowledged Quds Force involvement in Iraq and Syria and described the force as Iran's primary mechanism for cultivating terrorist activity abroad.[3] Congressional testimony identified the Quds Force as organizing the Afghan Fatemiyoun and Pakistani Zainabiyoun brigades. Open-source casualty data cited in that testimony recorded 201 Iranian, 178 Afghan, and 33 Pakistani nationals killed in Syria from January 2012 through November 30, 2015, excluding Iraqi and Lebanese fatalities.[2]

In Iraq, Iran supported Kata'ib Hizballah, Harakat al-Nujaba, and Asa'ib Ahl al-Haq with sophisticated weapons, increasingly accurate unmanned aerial systems, funding, and training. Those U.S.-designated terrorist groups conducted roughly two dozen rocket and drone attacks against U.S. and coalition facilities in Iraq during 2021.[3]

Between 1979 and 1981, the Guards took a primary role in suppressing armed autonomy movements among Baluchi, Kurdish, and Turkmen populations, antigovernment demonstrations in Tabriz, and the armed uprising by the Mojahedin-e Khalq that began in June 1981.[5]

The IRGC's involvement against internal opposition intensified after the disputed presidential election of June 12, 2009.[6] Treasury attributed serious human-rights abuses to the organization, including violent protest crackdowns and mistreatment of political detainees in an IRGC-controlled ward of Evin prison. It separately identified the subordinate Basij as involved in attacks on university students, abuse of detainees, and violence against peaceful protesters.[6]

The IRGC is also influential in Iranian politics, and many senior officials have served in its ranks.[1] Congressional testimony described Supreme Leader Ali Khamenei as relying on the organization to suppress opposition, illustrating its combined military and domestic-enforcement role.[2]

The IRGC has economic interests in construction, petroleum, transportation, telecommunications, and defense production.[7][11] Its principal commercial vehicle is Khatam al-Anbiya Construction Headquarters, which a witness at the 2015 congressional hearing described as Iran's largest contractor and the frequent recipient of major public projects awarded without competitive bidding.[2] Treasury reported that Khatam al-Anbiya secured contracts worth at least $7 billion in 2006 in oil, gas, transportation, and other sectors.[11]

Congressional testimony estimated that IRGC-linked companies listed on the Tehran Stock Exchange held assets exceeding $17 billion. It also cited the 2009 purchase of Iran Telecommunication by an IRGC-linked consortium for $7 billion, exceeding the IRGC's reported annual military budget at the time.[2]

Committee Chairman Edward Royce stated that the IRGC controlled about 30 percent of Iran's economy and that its construction arm had approximately 800 affiliated companies.[2] These were statements by the chairman and witnesses rather than independently established committee findings, and the hearing also discussed the use of front companies and concealed corporate connections.[2][2]

The Times of Israel reported that Khatam al-Anbiya employed approximately 135,000 people in civil development, oil, and defense work. It also reported that Supreme Leader Khamenei had instructed the IRGC to loosen its economic hold and privatize some assets.[12]

In October 2007, the U.S. government designated the IRGC under Executive Order 13382 in connection with proliferation activity and designated the Quds Force under Executive Order 13224 for providing material support to the Taliban and other terrorist organizations.[7][11] Executive Order 13382 freezes assets of weapons-of-mass-destruction proliferators and their supporters and isolates them from U.S. financial and commercial systems. The IRGC was linked to development and testing of the Shahab-3 missile, and several leaders were subject to UN sanctions.[7]

On October 13, 2017, the Treasury Department designated the IRGC under Executive Order 13224 for supporting the Quds Force. Treasury noted that the IRGC had already been designated under proliferation authorities in 2007 and human-rights authorities in 2011 and 2012.[13]

On April 15, 2019, the State Department designated the IRGC, including the Quds Force, as a Foreign Terrorist Organization under Section 219 of the Immigration and Nationality Act. It was the first such designation applied to part of another government.[1] Secretary of State Mike Pompeo called the action "recognizing a basic reality."[14] The State Department said the IRGC "has been directly involved in terrorist plotting" and that its support for terrorism was "foundational and institutional."[1]

An FTO designation makes it unlawful for people in the United States or subject to U.S. jurisdiction to knowingly provide material support to the organization. It can also make foreign members or representatives inadmissible or removable and requires U.S. financial institutions to retain and report funds in which the designated organization has an interest.[15]

The designation formed part of the Trump administration's maximum-pressure campaign after the United States withdrew from the 2015 nuclear agreement and reimposed sanctions.[14] Treasury's 2017 action was also taken consistently with the Countering America's Adversaries Through Sanctions Act.[13]

The United States, Canada, Argentina, Israel, Saudi Arabia, Bahrain, and the European Union have designated the IRGC or its Quds Force as a terrorist organization. The European Union formally designated the IRGC in January 2026.[4] On July 1, 2026, Israel's National Bureau for Counter Terror Financing announced sanctions against 37 cryptocurrency wallets valued at more than NIS 24 million, identifying them as part of an IRGC-linked financing infrastructure used to transfer funds to Iranian-backed organizations, especially Hezbollah.[16]

The State Department's 2019 terrorism report listed a series of IRGC and Quds Force operations and allegations. These included a 2011 plot against the Saudi ambassador in the United States, arrests of Quds Force operatives in Turkey and Kenya in 2012 in connection with attack planning, and the 2017 conviction of an IRGC operative who had surveilled a German-Israeli organization.[1]

The same report said German authorities uncovered ten IRGC operatives involved in a terrorist plot in January 2018. It also cited a September 2018 U.S. federal-court finding that Iran and the IRGC were liable for the 1996 Khobar Towers bombing, which killed 19 Americans.[1]

U.S. reporting identified three attacks or plots against Israeli targets in 2021: a thwarted plot against an Israeli embassy in East Africa, a bomb attack outside the Israeli embassy in New Delhi for which the Indian government attributed responsibility to the Quds Force, and a disrupted attempt to attack an Israeli businessman in Cyprus.[3]

Iran also continued providing weapons systems and other support to Hamas, Palestinian Islamic Jihad, and the Popular Front for the Liberation of Palestine-General Command. It supplied weapons, support, and training to the al-Ashtar Brigades and Saraya al-Mukhtar in Bahrain, both U.S.-designated terrorist organizations.[3]

The IRGC combines military, domestic-security, political, commercial, and foreign-policy functions. The State Department describes it as having acquired a substantial role in executing Iranian foreign policy, influencing domestic politics, and controlling large segments of Iran's economy.[1]

Its strategic methods include ballistic missiles and rockets, irregular naval operations, cyber capabilities, and support for partner armed groups across the Middle East.[8][3] The Congressional Research Service notes that Iranian leaders may view support for such groups as a cost-effective way to project power despite weaknesses in conventional military capabilities. The opaque nature of that assistance can also provide deniability, although supported groups may pursue interests independently of Tehran.[9]

A Library of Congress catalog record describes a 2009 RAND National Defense Research Institute study covering the IRGC's origins, indoctrination and media activities, economic expansion, public works, political role, affiliated businesses, and the careers of current and former personnel.[17] These varied fields illustrate how extensively the organization reaches beyond conventional military activity.

For Israel, the IRGC and Quds Force organize or support major armed threats involving Hezbollah, Hamas, Palestinian Islamic Jihad, and Iran-aligned forces in Syria and Iraq.[4][3] Their financing networks, weapons transfers, missile programs, and support for terrorist organizations therefore remain central Israeli security concerns.

Some operational allegations against the IRGC are based on government assessments, advocacy research, or legal findings and remain disputed by Iran. Iran responded to the 2019 U.S. Foreign Terrorist Organization designation by announcing a reciprocal designation of the U.S. military.[14] Iranian officials have also denied allegations that the IRGC supplied the Houthi movement with long-range missiles.[12]

The Congressional Research Service cautions that the degree of Iranian control over supported groups varies and that those groups may act independently in pursuit of their own interests.[9] Personnel estimates also vary by source and date, while the scope of the IRGC's economic holdings is difficult to measure because estimates depend partly on witness testimony and attempts to trace concealed corporate relationships.[12][2]

The 2015 congressional hearing recorded disagreements about the likely use of sanctions-relief funds and the contemporary status of Iranian transfers to Hamas.[2] These qualifications do not negate the cited U.S. findings or terrorist designations, but they require precise attribution when responsibility for a particular operation or the degree of control over a partner group is uncertain.