Published: · Region: Middle East · Category: geopolitics

U.S. Exit from Iraq Exposes Power Struggle with Iran-Backed Militias

Washington and Baghdad say all U.S. troops will be gone from Iraq by September 30, even as Iraq’s prime minister signals readiness for a direct clash with Iran-aligned militias that resist state control. The withdrawal ends a 23‑year U.S. military presence but opens a new test of who holds real power on the ground — Iraqi institutions or armed factions tied to Tehran.

The end of the U.S. military presence in Iraq is colliding with a brewing confrontation between Baghdad and Iran-backed militias, turning a long-promised withdrawal into a live test of Iraqi sovereignty.

U.S. and Iraqi officials confirmed on Wednesday, 12 August, that American forces remain on schedule to complete their pullout by 30 September, closing a deployment that began with the 2003 invasion and morphed into a smaller mission focused on Islamic State remnants. Hours earlier, Iraqi Prime Minister Ali Zaydi told political leaders he was prepared for a “confrontation” and “clash” with militias aligned with Iran if they refuse to cooperate once a government deadline expires, according to accounts of his remarks.

The dual signals capture a stark transition. On paper, Iraqi security forces will assume full responsibility for countering ISIS and securing key infrastructure as U.S. troops depart. In practice, the state is still competing for authority with armed groups that have deep political influence in Baghdad and longstanding ties to Tehran. Zaydi’s warning suggests the government is willing to risk internal escalation rather than allow those groups to dictate terms in the post‑U.S. phase.

For ordinary Iraqis, the implications are immediate. A full American withdrawal removes a target that has drawn rocket, drone and roadside bomb attacks around bases and convoys, but it also strips away a key external check on militia behavior. Residents in mixed or contested areas, from Baghdad’s outskirts to cities in the south and the north, could find themselves once again caught between rival security forces, each claiming legitimacy and each armed.

Operationally, Iraq’s army and federal police will be tested on multiple fronts. They must sustain pressure on ISIS cells that still operate in rural belts while managing potential urban friction with powerful paramilitary formations. Many of those militias are nominally integrated into the state’s security apparatus yet often answer to commanders who coordinate closely with Iran’s Islamic Revolutionary Guard Corps. How they respond to government orders after the U.S. exit will shape not just security, but cabinet stability and budget politics.

Strategically, the timetable matters well beyond Iraq’s borders. A clean U.S. departure by 30 September would mark a symbolic win for Tehran and for factions that have demanded an end to foreign troop presence. But an open clash between the prime minister’s forces and Iran-linked militias could instead expose fractures within the Iran-aligned camp and complicate Tehran’s effort to maintain a unified influence network from Baghdad to Beirut. Gulf states, Turkey and Western capitals will be watching whether Iraq emerges as a more independent actor or drifts deeper into proxy confrontation.

The move fits a broader U.S. retrenchment from large ground footprints in the Middle East in favor of smaller deployments and over-the-horizon capabilities. For global energy markets and investors, the question is whether internal Iraqi tensions stay below the threshold that threatens oil exports from Basra or pipeline infrastructure in the north; even localized clashes near key routes can inject risk premiums into crude benchmarks.

The core reality is blunt: withdrawing U.S. troops ends one phase of Iraq’s war cycle but does not end the contest over who controls the country’s guns, borders and budgets. The power struggle that follows will be fought largely between Iraqis, with outside capitals trying to steer the outcome at arm’s length.

The next signals to watch are whether the Iraqi government enforces its deadline on militia cooperation, how Iran-aligned factions respond in parliament and on the street, and whether any attacks target departing U.S. convoys or bases in the coming weeks. A visible test will be the chain of command over key urban areas and strategic highways once the last U.S. unit leaves — and whether that authority is obeyed without a foreign backstop.

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