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U.S. Completes Troop Withdrawal From Iraq, Ending Anti-ISIS Mission

Iraq

Andrew Caballero-Reynolds/Reuters

Andrew Caballero-Reynolds/Reuters

What Happened

The U.S. military completed the withdrawal of all American forces from Iraq, departing the final base in Erbil and formally concluding Operation Inherent Resolve under a 2024 U.S.-Iraq agreement, Pentagon officials said. It transfers security responsibility to Iraqi forces and raised concerns about Iran-backed militias and ISIS.

Key Implications

Task & Purpose reports that Kurdish officials fear the removal of U.S. air defense equipment could leave the region exposed to Iranian drone and ballistic missile attacks. The Kurdish regional government's Peshmerga Ministry said the area had already endured more than 1,000 such strikes during the recent U.S.-Iran conflict, with the Post-Gazette echoing that concern.

What Happened

The U.S. military completed the withdrawal of all American forces from Iraq, departing the final base in Erbil and formally concluding Operation Inherent Resolve under a 2024 U.S.-Iraq agreement, Pentagon officials said. It transfers security responsibility to Iraqi forces and raised concerns about Iran-backed militias and ISIS.

Key Implications

Task & Purpose reports that Kurdish officials fear the removal of U.S. air defense equipment could leave the region exposed to Iranian drone and ballistic missile attacks. The Kurdish regional government's Peshmerga Ministry said the area had already endured more than 1,000 such strikes during the recent U.S.-Iran conflict, with the Post-Gazette echoing that concern.

Where Sources Agree

  • arrows_inputOfficial Withdrawal Completion: Multiple accounts detail that U.S. forces completed their withdrawal from Iraq on September 30, marking the formal conclusion of the 12-year Operation Inherent Resolve mission following a final departure from Erbil Air Base, according to a Pentagon announcement.
  • arrows_inputBilateral Defense Relationship: Multiple outlets emphasize the transition from a wartime coalition mission to a bilateral defense relationship, with U.S. forces continuing to provide targeted training and intelligence support to Iraqi partners, according to official sources.
  • arrows_inputPost-Withdrawal Security Risks: Several sources align on the potential for increased instability following the U.S. withdrawal, highlighting the persistent threat of ISIS sleeper cells, the rising influence of Iran-backed militias, and Kurdish concerns over the loss of U.S. air-defense systems after enduring over 1,000 drone and ballistic missile attacks, according to regional security officials.

Where Sources Disagree

  • arrows_outputSecurity Readiness Post-Withdrawal: Iraqi and U.S. officials maintain that Iraqi forces are fully prepared to assume security responsibilities independently. However, Kurdish officials and security experts warn the withdrawal creates a dangerous security vacuum, citing the loss of vital air defense and intelligence capabilities.
  • arrows_outputPost-Withdrawal Security Assessment: U.S. officials describe the withdrawal as a successful conclusion to a mission that decimated ISIS as an organized military threat. In contrast, security experts and local officials warn that the departure leaves a vacuum, potentially allowing ISIS sleeper cells to regroup and Iran-aligned militias to expand their influence.

Timeline

June 01, 2027 Upcoming

Militia disarmament deadline extended: The Iraqi government had tied the Sept. 30 withdrawal to the disarmament of non-state armed groups, but Prime Minister Ali al-Zaidi later walked back the timetable and the deadline for militia disarmament was pushed to June 2027, leaving a major security and political challenge unresolved.

September 30, 2026

Final withdrawal completed: On September 30, 2026 U.S. Central Command and Iraqi officials announced an orderly departure of the last U.S. troops and equipment from Erbil Air Base, formally ending Operation Inherent Resolve in Iraq and marking the conclusion of the U.S. combat and logistical presence. Iraqi leaders hailed the move as the start of a new phase of sovereignty while U.S. officials said targeted training and intelligence support would continue.

February 28, 2026

Iran-linked attacks escalate: Since Feb. 28, 2026, bases in Iraq were repeatedly struck amid the wider U.S.-Iran war, and Kurdish officials said the Kurdistan Region endured more than 1,000 missile and drone attacks, heightening security concerns ahead of the planned U.S. drawdown.

Perspectives and Debates

Does the US withdrawal from Iraq represent a strategic victory or a setback?

Summary by Ground AI

A varied selection of sources chosen by Ground to reflect the diversity of this story’s coverage.

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