After more than two decades of military entanglement, the United States has completed its withdrawal from Iraq, closing a chapter that reshaped the Middle East and leaving behind a country now caught between two ascending forces: Iran's expanding proxy network and the quiet reconstitution of the Islamic State. The departure is less an ending than a redistribution — of power, of risk, and of responsibility. Whether Iraq can bear that weight alone is among the defining geopolitical questions of this moment.
US military withdrawal from Iraq risks empowering Iran-backed militias and ISIS resurgence
Iraq's own institutions are compromised in ways that make independent action difficult.
Mark
So the U.S. is pulling out entirely, or is there still some presence?
Mimi
The withdrawal is completing now, but it's been gradual. There were about 2,500 troops left doing training and counterterrorism work. Those are leaving.
Luke
The source says "exiting" and "withdrawal"—do we know the exact timeline? Is this happening over weeks, months?
Mimi
The reporting doesn't give us a precise end date, which is worth noting. It's described as ongoing.
Mark
Why does Iran care so much about Iraq specifically?
Mimi
Geography and power. Iraq sits between Iran and the broader Arab world. If Iran can control the space there, it extends its influence westward and gives it leverage over the entire region.
Luke
The source mentions "Iran-backed militias" as a unified thing. How many groups are we talking about? Are they coordinated or competing?
Mimi
That's a fair question. The reporting doesn't break that down. There are multiple groups, but the source doesn't specify how many or whether they work together or against each other.
Mark
And the Islamic State—how much of a real threat is it now versus a theoretical one?
Mimi
It lost its territory and its caliphate, but the source says thousands of fighters remain and are rebuilding networks. So it's degraded but not gone.
Luke
"Thousands" is one estimate. From whom? Is that U.S. intelligence, Iraqi intelligence, or an outside assessment? The source doesn't say.
Mark
What happens to Iraq's own military in all this?
Mimi
They've gotten better since 2014, but they're still dependent on American training and intelligence. Without that, they're on their own against both threats.
Luke
And the militias are actually part of Iraq's security forces in some cases?
Mimi
Yes—some are formally integrated into state institutions. That's the real problem. You can't cleanly separate the government from the proxy networks.
El Pulso
- The last American troops have left Iraq, removing the principal counterweight to Iranian influence and ending a military commitment that stretched across three presidencies and two wars.
- Iran-backed militias — already embedded in Iraq's economy, politics, and security forces — now face far fewer constraints, raising fears of accelerated consolidation and cross-border expansion.
- Islamic State cells, never fully extinguished, have been quietly rebuilding financial networks and recruitment pipelines, and the loss of American airstrikes and intelligence support gives them operational room they have not had in years.
- Iraq's security forces, while stronger than in 2014, remain dependent on external training and intelligence and are structurally compromised by the very militias they are expected to check.
- Washington loses not only troops on the ground but a diplomatic lever — its ability to shape Iraqi governance and resist Iranian encroachment now diminished to near zero.
After more than two decades of military entanglement, the United States has completed its withdrawal from Iraq, closing a chapter that reshaped the Middle East and leaving behind a country now caught between two ascending forces: Iran's expanding proxy network and the quiet reconstitution of the Islamic State. The departure is less an ending than a redistribution — of power, of risk, and of responsibility. Whether Iraq can bear that weight alone is among the defining geopolitical questions of this moment.
The last American soldiers are leaving Iraq, and the question of what follows is one that regional analysts cannot easily answer. For nearly two decades, the U.S. military served as a visible counterweight to Iranian influence — a presence that constrained, if imperfectly, the ambitions of Tehran's proxy networks. That constraint is now gone.
The withdrawal closes a commitment that began in 2003 and was dramatically renewed in 2014, when the Islamic State swept across northern Iraq and threatened Baghdad itself. American forces returned as advisors and air support, helping Iraqi troops dismantle the caliphate city by city. By 2021, the U.S. had drawn down to roughly 2,500 troops conducting training and counterterrorism operations. Now even that smaller footprint has ended.
For Iran, the exit is a strategic windfall. Over the past decade, Tehran built a shadow military apparatus inside Iraq — armed militias funded and directed by the Islamic Revolutionary Guard Corps, now deeply embedded in the country's politics, economy, and formal security structures. With American forces present, these groups faced at least a theoretical check. That check has lifted, and analysts expect them to consolidate power and potentially expand operations beyond Iraq's borders.
The Islamic State, meanwhile, has not disappeared. Stripped of its territorial caliphate, the group persists as a network of cells conducting ambushes, assassinations, and bombings across Iraq and Syria. American airstrikes and intelligence kept these operations degraded. Without that support, the group has space — and, by most assessments, the quiet organizational groundwork — to reconstitute.
Iraq sits at the collision point of these two forces, and its institutions are not fully equipped to manage either. Its security forces have improved, but they have never been tested against both threats simultaneously without external backing. Worse, the militias are woven into those same forces, blurring the line between state and proxy in ways that make independent action deeply complicated.
What the withdrawal ultimately removes is not just military capacity but diplomatic leverage — Washington's ability to shape Iraqi governance and resist Iranian expansion. The country is now more firmly in Tehran's orbit, with fewer counterbalances and more room for instability to take root. Whether Iraq can navigate this transition on its own will define the region's trajectory for years ahead.
The last American soldiers are leaving Iraq, and what comes next is a question that keeps regional analysts awake at night. For nearly two decades, the U.S. military presence in Iraq served as a counterweight to Iranian influence—a visible reminder that Washington had skin in the game and interests to protect. That balance is shifting. As American forces complete their withdrawal, they are leaving behind a country where two competing forces now have more room to operate: the network of militias backed and armed by Iran, and the scattered but still-lethal remnants of the Islamic State.
The departure marks the end of a military commitment that began in 2003 and evolved dramatically after 2014, when the Islamic State swept across northern Iraq and threatened to overrun Baghdad itself. American troops returned then, not as occupiers but as advisors and air support, working alongside Iraqi forces to degrade the militant group's territorial holdings. That mission succeeded in its core objective—the caliphate collapsed, the cities were retaken, and by 2021, the U.S. had already drawn down significantly. What remained was a smaller footprint: roughly 2,500 troops scattered across bases, training Iraqi soldiers and conducting counterterrorism operations. Now even that is ending.
For Iran, the withdrawal is a strategic gift. Over the past decade, Tehran has methodically built a shadow military apparatus inside Iraq—networks of armed groups nominally independent but effectively controlled through funding, weapons, and direction from the Islamic Revolutionary Guard Corps. These militias have grown wealthy and powerful, moving drugs, running protection rackets, and accumulating political influence. With American troops present, their activities faced at least the theoretical risk of direct confrontation. That constraint is lifting. Iraqi officials and Western analysts expect these groups to consolidate power, deepen their grip on state institutions, and potentially use their newfound freedom to expand operations beyond Iraq's borders.
The Islamic State threat, meanwhile, has not disappeared. The group lost its territorial caliphate, but it did not cease to exist. Thousands of fighters remain scattered across Iraq and Syria, organized into cells that conduct ambushes, assassinations, and bombings. American airstrikes and intelligence support have kept these operations contained—degraded but persistent. Without that support, without the presence of troops who can call in air support or conduct raids, the group has space to reconstitute. Intelligence assessments suggest the organization has been quietly rebuilding its financial networks and recruitment apparatus, waiting for the moment when international pressure eases.
Iraq itself sits at the center of this collision. The country's security forces have improved markedly since 2014, but they remain dependent on American training and intelligence. They have not yet demonstrated the capacity to simultaneously counter both Iranian-backed militias and Islamic State cells without external support. The militias, moreover, are woven into Iraq's security apparatus itself—some are formally integrated into state forces, blurring the line between government and proxy. This means Iraq's own institutions are compromised in ways that make independent action difficult.
The withdrawal also removes a diplomatic lever. American presence gave Washington a seat at the table in Iraqi politics, a way to push back against Iranian expansion and advocate for inclusive governance. That influence is gone. What remains is a country increasingly pulled into Iran's orbit, with fewer counterbalances and more space for extremist groups to operate. The question now is whether Iraq's government can navigate this transition alone—whether it can resist Iranian domination while simultaneously containing an enemy that thrives in chaos. The answer will shape the region's stability for years to come.
Citas Notables
The withdrawal removes a diplomatic lever that gave Washington influence over Iraqi politics and a way to push back against Iranian expansion— Regional security analysis
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