Summary:
• A collapse of the Iranian regime could create a massive power vacuum, echoing the chaotic aftermath of the 2003 Iraq invasion.
• Several armed and highly organized factions, ranging from exiled Marxist-Islamists to regional ethno-nationalist guerrillas, are positioned to vie for control.
• Historical betrayals, deep ideological divides, and competing visions for the Iranian state suggest these groups might fight each other, risking the “Lebanonization” or fragmentation of the country.
• The path to a democratic transition remains precarious, threatened by the prospect of civil war among these heavily armed opposition forces.
Introduction
In 2003, the United States dismantled a regime in Iraq with breathtaking speed, only to find itself entirely unprepared for the violent power vacuum that followed. We failed to ask the most crucial question of the day after: Who steps in when the state steps out? Today, as the foundations of the Iranian regime face historic pressures, we risk making the same mistake. It is a journalistic and civic duty to look past the hopeful vision of a bloodless democratic transition and examine the reality on the ground. If the Islamic Republic falls, a fractured landscape of exiled militants, ethno-nationalist insurgents, and guerrilla fighters will be waiting. What follows is not a prediction of certainty, but a necessary look at the potential armed factions who might try to seize power—and the very real possibility that they could turn their weapons on each other in the process.
The Factions Waiting in the Wings
If the central authority in Tehran collapses, these are the primary organized groups that intelligence agencies have historically tracked as potential claimants to the power vacuum.
1. Mujahedin-e Khalq (MEK) / National Council of Resistance of Iran
• History: The MEK is an exiled Iranian opposition group founded in the 1960s. For decades, it operated as a heavily armed militant organization based in Iraq, conducting insurgent, bombing, and assassination campaigns against the Iranian government. It was designated a Foreign Terrorist Organization (FTO) by the U.S. until 2012.
• Current Status: Following the 2003 invasion of Iraq, the MEK was disarmed of heavy conventional weapons by U.S. Coalition forces. Today, they possess roughly 3,000 to 3,500 members, relocated to a civilian compound in Albania, operating as a highly organized, albeit conventionally disarmed, political opposition structure.
• Ideals and Goals: They seek to establish themselves as the new, centralized government of Iran, operating on a highly unique foundational ideology that blends Islamism and Marxism.
• Source Quote: “The Secretary’s decision today took into account the MEK’s public renunciation of violence, the absence of confirmed acts of terrorism by the MEK for more than a decade, and their cooperation in the peaceful closure of Camp Ashraf, their historic paramilitary base.”
• Source URL: www.2009-2017.state.gov/r/pa/prs/ps/2012/09/198470.htm
• Source Quote (Status/Ideology): “The MEK, founded in 1965 by Muslim students advocating a combination of Marxist communism and Islamist ideology, is an Iranian political-militant organization in exile that proposes the overthrow of the Iranian regime to establish itself as a new government.”
• Source URL: www.dia.mil/portals/110/images/news/military_powers_publications/iran_military_power_lr.pdf
2. Jaysh al-Adl (Army of Justice)
• History: Emerging from the remnants of the group Jundallah around 2013, Jaysh al-Adl is a Sunni Baloch militant organization operating in the remote southeastern Sistan and Baluchestan province, and across the border in Pakistan.
• Current Status: They operate as a decentralized, highly mobile guerrilla force. They do not hold large swaths of territory or possess heavy armor, relying instead on small arms, rocket fire, and explosives to execute hit-and-run tactics against Iranian security forces.
• Ideals and Goals: They fight for greater cultural, economic, and political autonomy for the marginalized Baloch minority in Iran.
• Source Quote: “Jaysh al-Adl was designated as an FTO on November 4, 2010, under the name Jundallah… The group seeks to secure recognition of Baloch cultural, economic, and political rights from the Government of Iran and spread awareness of the plight of the Baloch people.”
• Source URL: www.state.gov/reports/country-reports-on-terrorism-2023
• Source Quote (Status): “Its fighters use guerrilla swarm-and-scatter tactics—primarily with small arms and rocket fire—to attack border outposts and transportation convoys.”
• Source URL: www.dni.gov/nctc/terrorist_groups/jaa.html
3. Kurdish Factions: Free Life Party of Kurdistan (PJAK) & Kurdistan Democratic Party of Iran (KDPI)
• History: Iranian Kurdish political parties and their armed wings (Peshmerga) have fought for decades against the central government in Tehran. PJAK is a specific militant offshoot closely tied to the PKK.
• Current Status: These factions are currently estimated to have hundreds to low thousands of fighters. They lack a mechanized army, relying instead on mountain guerrilla warfare tactics from encampments in the rugged Qandil Mountains along the Iran-Iraq border.
• Ideals and Goals: They are largely secular, ethno-nationalist groups seeking regional autonomy, federalism, or independence for Iranian Kurdistan, rather than seeking to govern all of Iran.
• Source Quote: “PJAK claims its aims ‘are to unite the Kurdish and Iranian opposition, to change the oppressive Islamic regime in Iran and to establish a free democratic confederal system for the Kurds and the Iranian peoples’…”
• Source URL: www.cia.gov/library/abbottabad-compound/36/3685346716BD829EB3D702471DA027D5_TM_006_010.pdf
• Source Quote (Ideology): “Kurdistan Democratic Party of Iran (KDPI). Largest Kurdish opposition group, demanding autonomy. Based in Iraq.”
• Source URL: www.justice.gov/file/266161/dl?inline=
A Recipe for Internecine Conflict: Why They Might Fight Each Other
If the regime falls, the assumption that these opposition groups would hold hands and form a coalition government ignores decades of bloodshed and deep ideological chasms. Intelligence assessments have long warned that a sudden power vacuum might result in extreme fragmentation and civil war.
• The Threat of “Lebanonization” and Regional War
• Without a strong central authority, ethnic minorities and regional militias might immediately fight to secure their own borders, leading to mass chaos.
• Source Quote: “The Iranian society is now too fractious, too fragile, and faction-ridden… barring totally unforeseen events, the chance of Lebanonization of Iran is very high. The country would probably drift into more chaos and armed internecine conflicts. In the process, the Kurds would be likely to consolidate their de facto autonomy, followed by other ethnic minorities…”
• Source URL: www.reaganlibrary.gov/public/2024-05/40-286-R02-054-2023.pdf
• Source Quote: “Indeed, in the absence of leadership and a coordinating body that can direct and ensure a peaceful transition of power in Iran, the risk of violence and civil war is high.”
• Source URL: www.efile.fara.gov/docs/6639-Informational-Materials-20200623-2.pdf
• Ideological Clash: The Center vs. The Provinces
• The MEK views itself as the rightful heir to a centralized Iranian state, desiring to rule from Tehran with an ideology that fuses Marxism and Islamism. They would likely view any attempt by Kurdish or Baloch factions to carve out autonomous zones as an existential threat to the nation. Conversely, Kurdish and Baloch groups despise the idea of another centralized autocracy replacing the current one.
• Source Quote: “The group’s unique brand of Marxism and Islamism, however, would bring it into conflict with the rigid Shiite Islamism espoused by the post-revolutionary government.”
• Source URL: www.cia.gov/library/abbottabad-compound/C3/C3091956B72C68A59DB7F7B666071904_TM_006_011.pdf
• The Blood Feud: The Saddam Hussein Betrayal
• Perhaps the most insurmountable hurdle to cooperation between the MEK and Kurdish factions is history. During the Iran-Iraq War, Saddam Hussein committed genocide against Kurdish populations using chemical weapons. During that same period, the MEK defected to Iraq and allied with Saddam’s military. It is highly probable that Kurdish militias would violently reject any attempt by the MEK to assert national power, viewing them as historical accomplices to their own slaughter.
• Source Quote: “After initially supporting the 1979 revolution, the MEK fought on behalf of Saddam late in the Iran-Iraq War and was responsible for a series of bombings and assassinations inside Iran…”
• Source URL: www.dia.mil/portals/110/images/news/military_powers_publications/iran_military_power_lr.pdf
Conclusion
We do a disservice to the pursuit of truth when we pretend that the fall of a bad government automatically yields a good one. History is littered with the wreckage of nations where dictators were toppled only to be replaced by the brutal math of civil war. If the Iranian regime falls, the international community cannot afford to be caught off guard by the heavily armed, ideologically entrenched factions that have spent decades preparing for that exact moment. Understanding who they are, what they want, and why they might fight each other is the first required step in preventing a democratic hope from turning into a regional nightmare.
Author’s Note / Disclaimer:
The information and assessments presented in this article are drawn from declassified intelligence reports, foreign policy archives, and official threat assessments published by the United States and United Kingdom governments. Due to the closed nature of the Iranian state, precise real-time military data—such as exact troop counts or weapons stockpiles for illicit insurgent groups—is fluid and heavily guarded. This piece is not intended as a definitive prophecy of what will happen, but rather an informed, historically grounded analysis of what could happen based on the enduring ideological divides, past behavior, and stated goals of the region’s known armed factions.
