Iran’s Militias: A Cancer Devouring the Middle East—and a Threat Far Beyond It
- Tony Boulos
- 3 hours ago
- 13 min read
A MidEast.Journal Field Guide to Iran’s Militias and Proxies
By Tony Boulos
At last, the threat has been described in language equal to its magnitude.
President Donald Trump recently compared the prospect of a nuclear-armed Iran to a “cancer,” arguing that such a threat had to be cut out before it could spread. The metaphor applies just as powerfully to the regional system Tehran has spent decades building around itself.
Across Lebanon, Iraq, Syria and Yemen, Iran has cultivated armed militias that penetrate weakened states, undermine their institutions and erode their sovereignty from within. These groups allow Tehran to project power far beyond its borders while transferring the human and economic costs of confrontation onto the societies in which they operate.
And like a cancer, the danger does not remain confined to its point of origin. Iran’s proxy network has already disrupted international shipping, fueled transnational criminal and financial networks, threatened energy infrastructure and helped turn entire countries into arenas for wars their populations did not choose.
The problem is therefore larger than Hezbollah, the Houthis or any individual militia. It is the system that sustains them.
Iran’s proxy militias have weakened Arab states, disrupted global trade and transferred the cost of Tehran’s regional ambitions onto millions of civilians. Defeating individual groups will not be enough unless the wider system sustaining them is dismantled.
Iran’s proxy network does not merely threaten Israel or the United States. It has hollowed out Arab states, turned civilian territory into a battlefield, disrupted global shipping and built financial networks extending far beyond the Middle East.
In Lebanon, Hezbollah has maintained an armed structure beyond the full control of the state. In Yemen, the Houthis have used missiles and drones to threaten one of the world’s most important maritime corridors. In Iraq, Iran-aligned factions have operated within and alongside state institutions while preserving independent sources of military power. In Syria, smuggling routes and armed networks have supported Tehran’s broader regional strategy.
These are not entirely separate crises. They are elements of a system Iran has developed over more than four decades: build relationships with local armed organizations, supply them with money, training and weapons, and use them to project power without bearing the full cost of direct confrontation.
As Mideast Journal has previously documented, Tehran transformed local movements into one of the world’s most sophisticated networks of proxy forces. The network behaves like a political cancer. It penetrates weakened institutions, undermines sovereign decision-making and spreads instability across borders.
Iran’s militias have not liberated the countries in which they operate. They have hollowed them out. They have not protected their societies. They have repeatedly turned those societies into battlegrounds. And they have not defended sovereignty. They have subordinated it to the strategic priorities of Tehran.
Iran’s Proxy Model
The organizations commonly described as Iran’s “Axis of Resistance” are not identical, nor do they operate under one uninterrupted chain of command. Hezbollah, the Houthis and Iran-aligned Iraqi factions each have distinct histories, constituencies and local interests. Their relationships with Tehran also vary. Iranian support does not necessarily mean that the Islamic Revolutionary Guard Corps directly commands every decision made by every organization. But together, these groups form a strategic network whose members receive varying combinations of Iranian weapons, financing, training, technology and political support.
The model is brutally effective. Iran identifies political weakness, cultivates a local armed partner and helps it establish military power beyond the authority of the state. The organization then enters politics without surrendering its weapons, allowing it to influence national institutions while preserving the ability to intimidate opponents or initiate conflict.Over time, the distinction between political participation and armed coercion collapses.
Where this model becomes entrenched, a familiar pattern follows: parallel armies, illicit economies, political intimidation, damaged investment, weakened borders and wars imposed on populations that never freely chose them. This is not national resistance. It is the gradual privatization of sovereignty.
Lebanon: How Hezbollah Weakened the State
In Lebanon, Hezbollah became far more than a political party with an armed wing. It developed extensive military, security, financial, communications and social institutions while retaining an arsenal outside the effective authority of the Lebanese government. That power gave Hezbollah a veto over the most consequential decision any state can make: whether the country goes to war.
Lebanese civilians have repeatedly absorbed the consequences. Their villages are destroyed, their families displaced, their economy damaged and their country internationally isolated. Yet the strategic decisions that expose Lebanon to those costs have often been made without a national mandate.
The contradiction lies at the center of Hezbollah’s position. It participates in the Lebanese political system while maintaining the ability to override it. As this author has argued in Mideast Journal’s analysis of Hezbollah and Lebanese sovereignty, many Lebanese increasingly see the organization not as a national liberation movement but as Iran’s most important proxy on the Mediterranean.
Hezbollah has used the language of resistance to justify preserving an independent arsenal, intimidating political adversaries and tying Lebanon to regional confrontations shaped by Iran’s calculations. Even after suffering severe military losses, it has attempted to preserve or rebuild its capabilities. In 2025, the United States Treasury said Iran had transferred tens of millions of dollars to Hezbollah through Lebanese exchange houses, demonstrating that financial support from Tehran had continued despite mounting pressure on the organization.
The fall of Bashar al-Assad disrupted Hezbollah’s traditional land corridor through Syria, but it did not eliminate efforts to move weapons across the region. Syrian authorities have continued reporting operations against smuggling networks allegedly connected to Hezbollah.
The new Syrian government’s attempt to restrict these routes is examined in Mideast Journal’s report on Syria’s border strategy toward Hezbollah. The stakes are straightforward. The villages destroyed in another war will be Lebanese. The civilians displaced will be Lebanese. The economy damaged will be Lebanese. But the strategic beneficiary will be Iran.
Yemen: Houthi Attacks Put Global Shipping at Risk
In Yemen, the Houthis transformed a domestic conflict into a source of international leverage. Their missile and drone attacks against commercial shipping in and around the Red Sea and the Bab al-Mandab Strait threatened a maritime route connecting Asia, Europe and the Mediterranean. Ships that once passed through the Red Sea in days were forced to spend weeks travelling around Africa’s Cape of Good Hope. According to UN Trade and Development, those diversions increased voyage times, operating costs, emissions and freight-rate volatility.
The Houthis presented their attacks as part of a regional struggle connected to Gaza. In practice, the campaign demonstrated how an armed organization controlling part of an impoverished country could place pressure on the international economy. It also gave Iran and its allies leverage over a second maritime chokepoint, complementing Tehran’s longstanding ability to threaten traffic through the Strait of Hormuz.
The Houthis began as a domestic insurgent movement, but they have evolved into an increasingly capable Iranian partner. Iranian weapons technology, training and technical support helped the organization improve its missile, drone and targeting capabilities. For a fuller explanation of the movement’s origins and ideology, see Who Are the Houthis?. Their unusual ability to conceal and move weapons is examined in Why Can the Houthis Cause So Much Damage?.
The strategic arrangement protects Tehran from some of the consequences of direct confrontation. Iran can provide technology and support while the Houthis conduct operations and Yemeni civilians bear the consequences of retaliation, economic collapse and continued war. Once again, the militia survives by sacrificing the state it claims to defend.
Iraq: Iran-Backed Militias Inside the State
In Iraq, Iran-aligned armed factions embedded themselves in the country’s political and security system after the fall of Saddam Hussein and the subsequent collapse of state authority.
Groups including Kata’ib Hezbollah and Asa’ib Ahl al-Haq developed political influence while retaining armed capabilities and relationships with Iran. These organizations cannot be understood simply as conventional political parties. Their weapons give them coercive power beyond their representation in parliament or government.
Iran-aligned factions have been accused of threatening political opponents, attacking American forces and advancing regional objectives that do not necessarily reflect the priorities of the Iraqi public. Their presence creates an enduring contradiction: the Iraqi state formally possesses sovereign authority, but armed groups within its territory may retain the ability to initiate attacks, provoke retaliation or influence national decisions through force.
A state cannot be fully sovereign when factions operating inside it receive weapons, funding or strategic support from a foreign power and reserve the right to act beyond the government’s command. Recent Iraqi efforts to bring militia weapons under state authority show that this arrangement is not irreversible. Mideast Journal recently reported that Asa’ib Ahl al-Haq and Kata’ib Imam Ali had agreed to place weapons under government control.
Whether such commitments result in meaningful disarmament remains to be seen. But they reveal that the question of militia power is increasingly understood as a question of Iraqi sovereignty—not merely an ideological disagreement between competing factions.
Syria: Disrupting Iran’s Weapons Corridors
Under Bashar al-Assad, Iran exploited Syria’s civil war and state collapse to construct a military and logistical corridor linking Iran, Iraq, Syria and Lebanon. The IRGC deployed commanders, weapons and foreign Shiite militias across Syrian territory. Syria became a weapons route, recruitment zone and forward operating base for Iran’s regional network.
The Syrian people paid the price through mass displacement, devastated cities, economic collapse and the erosion of national sovereignty. Iran did not intervene primarily to reconstruct Syria. It intervened to preserve Assad, entrench its influence and support the military infrastructure connecting Tehran to Hezbollah.
The fall of Assad fundamentally changed that environment. Iran no longer enjoys the same state-backed freedom of movement inside Syria. But the disappearance of Assad’s government did not automatically eliminate every smuggling network, weapons depot or armed intermediary developed during years of war.
Syrian authorities have continued reporting attempts to move weapons toward Lebanon. These operations suggest that remnants of the former corridor remain active even if Tehran has lost much of its previous political and military position. Disrupting these routes is therefore essential not only for Syrian security but also for Lebanon’s ability to restore exclusive state control over decisions of war and peace.
One Strategic Network, Multiple Local Actors
The regional fronts are not perfectly centralized, but neither are they isolated. When Iran faces intense pressure, allied groups can generate simultaneous crises across several theaters. Hezbollah can escalate from Lebanon. Iraqi factions can target American or regional interests. The Houthis can attack international shipping. Armed networks in Syria can attempt to transfer weapons and personnel.
The timing and degree of coordination vary. Local organizations may pursue their own objectives, and Tehran may not dictate every operation. But the cumulative strategic effect is clear: Iran’s adversaries must divide military resources, political attention and intelligence capacity across multiple fronts.
Iran’s proxy network functions as a system of external defense lines. Tehran projects power from Lebanese villages, Iraqi bases, Syrian territory and Yemeni ports. It transfers the physical and economic cost of confrontation onto other societies. That is the central obscenity of the proxy model: Tehran claims the strategic gains, while Arab civilians inherit the coffins, ruins and bills. The wider structure is explored in Iran’s Axis of Resistance—and Is Iran Standing Alone in the War?.
From Proxy Warfare to Global Finance and Crime
The threat does not stop at the Middle East’s borders. Hezbollah has a documented history of international terrorist activity, including attacks and plots outside Lebanon. Governments have also accused Hezbollah-linked financiers and facilitators of involvement in money laundering, oil smuggling, sanctions evasion and other illicit commercial networks.
In March 2025, the U.S. Treasury sanctioned a Hezbollah finance network that it said managed commercial projects and oil-smuggling operations linked to the organization. Such networks allow armed groups to convert apparently legitimate commercial activity into political influence, operational funding and military capability. Ports, exchange houses, front companies and opaque financial jurisdictions can become extensions of a conflict that appears, from a distance, to be confined to the Middle East.
The challenge is not simply that crime finances terrorism. Armed power can also protect criminal economies by intimidating investigators, controlling border crossings and weakening the institutions responsible for enforcement. Mideast Journal has examined how Hezbollah, Hamas and the Houthis adapt to Western sanctions, using decentralized financial methods, front organizations and alternative channels to preserve access to money and material.
This is why treating Iranian-backed groups as purely local actors is a strategic error. They are parts of an international political, military and financial ecosystem.
Captagon and the Economies of State Collapse
The regional Captagon trade illustrates how illicit economies flourish when governments lose control over territory, borders and security institutions. For years, industrial-scale production was concentrated in Assad-controlled Syria. According to a United Nations Office on Drugs and Crime assessment, 80 percent of Captagon seizures in the region between January 2019 and November 2025 that identified a country of origin pointed to Syria.
Large-scale manufacturing was significantly disrupted after Assad’s fall in December 2024, although stockpiles and smaller production networks may continue supplying traffickers. The Captagon trade should not be simplistically attributed to every Iranian-aligned militia. Its primary industrial infrastructure was closely associated with Assad-era Syria.
But its growth demonstrates a broader principle: where armed networks penetrate the state, illicit economies can become instruments of political survival. Smuggling, patronage and corruption generate revenue while further weakening the institutions capable of challenging them. Militia power and organized crime do not always form the same system, but they thrive in the same environment—the collapse of accountable sovereignty.
Why Tactical Containment Keeps Failing
The international community has spent years trying to contain Iran’s proxy network through sanctions, temporary ceasefires, limited military operations and fragmented diplomatic initiatives. These measures can impose real costs. They can destroy weapons, disrupt funding and deter specific attacks. But tactical pressure has repeatedly failed to produce a permanent strategic outcome. When one transfer route is closed, Iran and its partners seek another. When a militia loses commanders or weapons, it attempts to rebuild. When diplomatic pressure eases, armed organizations use the respite to reorganize.
The problem is not diplomacy itself. Negotiation is often necessary to end wars, release hostages, restore navigation and prevent regional escalation. The problem arises when an agreement freezes a conflict without changing the conditions that produced it.
A ceasefire that leaves an armed organization free to rearm may delay violence rather than prevent it. Sanctions that target prominent leaders while leaving financial networks intact may punish individuals without weakening the wider structure. Iran’s militia system should not receive permanent political legitimacy simply because dismantling it is difficult.
Armed groups cannot be treated as equivalent to sovereign governments while they maintain independent arsenals, accept foreign military support and reserve the right to initiate wars.
The Nuclear Dimension
Iran is not publicly known to possess a nuclear weapon. But its nuclear capabilities, outstanding safeguards questions and restrictions on international verification have intensified concerns about how quickly it could move toward one.
In June 2026, the International Atomic Energy Agency reported that it lacked access to most declared Iranian nuclear facilities during the relevant reporting period and had not received sufficient information about the status of associated nuclear material.
A nuclear-armed Iran would not represent only an Iranian or Israeli problem. It would transform the strategic calculations of the Gulf states, Turkey, Europe and the wider international community. It could encourage regional proliferation and give Tehran greater confidence that a nuclear deterrent would shield intensified activity by its conventional forces and regional partners.
The concern is not based on an imagined future Iranian government. It is based on the conduct of the regime that exists—a regime that has spent decades building armed organizations, moving weapons across borders and treating neighboring states as platforms in a regional confrontation. Mideast Journal has examined the relationship between Iran’s nuclear ambitions and its wider regional policy in The Architecture of Hostility: Why Lasting Peace With Iran Remains Elusive.
What October 7 Revealed About Iran’s Regional Strategy
The regional escalation following the Hamas attack of October 7, 2023, demonstrated the strategic utility of Iran’s network. Hezbollah opened a front against Israel from Lebanon. Iran-aligned Iraqi factions attacked American positions. The Houthis launched projectiles toward Israel and began targeting maritime traffic.
Each organization had its own motivations and political calculations. Their actions should not be collapsed into a claim that Iran directly planned or commanded every operation. But together, they forced Israel, the United States and regional governments to divide their attention across several interconnected theaters.
The escalation showed that a conflict beginning in one arena could rapidly threaten Lebanese stability, American forces in Iraq and Syria, Red Sea shipping and Gulf security. Iran’s regional ambition has never been limited to supporting a single Palestinian organization or confronting one adversary. It seeks to shape the Middle East through a network of armed actors whose power often exceeds that of the states in which they operate.
A region dominated by such forces would not become more independent. It would become a landscape of permanent war, ideological repression, fragile governments and militarized economies.
Two Competing Models for the Middle East
The contrast between two regional models has become increasingly difficult to ignore.
One model invests in cities, infrastructure, technology, education, trade, tourism and economic integration. Its governments seek stability because stability generates growth. The other invests in missiles, drones, tunnels, militias and smuggling routes. Its influence expands when governments are weak and conflict becomes permanent.
The first model is imperfect. Economic development does not automatically produce political freedom, social justice or regional peace. But the second model requires institutional collapse. It cannot flourish inside a genuinely sovereign state whose government controls its territory, borders and weapons.
Iran’s proxy system is therefore not simply an alliance opposed to Israel or the United States. It is a challenge to the principle of the sovereign Arab state.
A Strategy for Restoring Sovereignty
Lebanon, Iraq, Syria and Yemen must not be abandoned to permanent militia domination. International support for sovereignty must mean more than diplomatic statements. It requires strengthening legitimate national armies, securing borders, disrupting illicit finance and protecting the judges, journalists, political leaders and civil-society activists who challenge armed organizations.
It also requires ending the fiction that militia disarmament is a purely internal technical question. When an organization is funded, armed or trained by a foreign power, its weapons become a matter of regional and international security.
Lebanon cannot confront Hezbollah’s military power while Iran continues replenishing its finances and weapons. Yemen cannot escape permanent Houthi domination while sophisticated weapons technology continues reaching the movement. Iraq cannot consolidate sovereignty while factions preserve independent military relationships with Tehran. And Syria cannot recover if its territory again becomes a corridor for regional weapons transfers.
A serious strategy should combine several elements:
Block weapons-smuggling routes across land and sea.
Target financial facilitators and front companies rather than only prominent commanders.
Strengthen national armed forces and border agencies.
Protect international shipping and freedom of navigation.
Enforce sanctions against entities supporting militia rearmament.
Support political and civil institutions capable of challenging armed coercion.
Condition reconstruction assistance on measures that reduce the power of parallel military structures.
No single policy will dismantle the entire system. The conditions in Beirut, Baghdad, Damascus and Sanaa are different. But the objective should be consistent: governments must recover exclusive authority over weapons and decisions of war and peace.
The Choice Before the Middle East
The central struggle is not between rival sects or competing slogans. It is between the sovereign state and the armed organization that claims a veto over it. It is between citizenship and ideological obedience, national institutions and foreign-backed militias, economic development and permanent war. Iran’s regional network survives because it distributes risk.
Tehran supplies money, weapons, expertise and political backing. Lebanese, Iraqi, Syrian and Yemeni civilians absorb the retaliation, displacement and economic collapse. Weakening one militia without disrupting the wider system merely postpones its recovery.
A credible international strategy must therefore connect the theaters: block weapons corridors, target illicit finance, protect maritime routes, strengthen legitimate national institutions and insist that decisions of war and peace belong to governments—not foreign-backed armed groups. The objective is not endless confrontation with the peoples of the region. It is the restoration of their sovereignty.
Tony Boulos is a Lebanese journalist and political analyst specializing in Middle East security and geopolitics. A frequent commentator on Arab and international TV, he provides expert insights into the region’s complex landscape. Boulos is a regular ME24 contributor, delivering strategic analysis on the most pressing issues in the Middle East.