event

2003 US-led invasion of Iraq

Also known as: 2003 U.S.-led invasion of Iraq, 2003 Iraq war, 2003 U.S. invasion of Iraq, 2003 invasion of Iraq, 2003 US invasion of Iraq, 2003 US-led invasion of Iraq

Entities (3)

Saddam Hussein

Saddam Hussein

Saddam Hussein was the leader whose regime was overthrown by the 2003 US-led invasion of Iraq, as detailed in [1], [2], [3], and [4]. This event also marked the end of the U.S. policy of dual containment regarding his Iraq [5] and facilitated the return of groups like the Badr Organization [6]. — 4 supporting facts

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Iraq

Iraq

The 2003 US-led invasion of Iraq is directly related to Iraq as it was the specific military event that toppled the Ba'ath regime [1], removed Saddam Hussein {fact:1, fact:2}, and fundamentally altered the nation's political landscape and security environment {fact:1, fact:3}. — 1 supporting fact

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United States

United States

The United States is the primary actor responsible for the 2003 invasion of Iraq, as evidenced by its role in removing Saddam Hussein [1], managing the subsequent regional displacement [2], and shifting its strategic policy toward Iran [3] and [4].

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Facts (13)

Sources

After Khamenei: Regional Reckoning and the Future of Iran's Proxy ... stimson.org Stimson Center Mar 2, 2026 2 facts

claimThe 'Axis of Resistance' proxy network was initially boosted by the 2003 U.S. invasion of Iraq, which overthrew the regime of Saddam Hussein.

accountThe 'Axis of Resistance' proxy network was initially strengthened by the 2003 U.S. invasion of Iraq, which resulted in the overthrow of Saddam Hussein.

Iran at a Historical Crossroads - E-International Relations e-ir.info E-International Relations Mar 25, 2025 2 facts

claimThe 2003 US invasion of Iraq resulted in chaos and insurgency, a scenario that Iran's leadership seeks to avoid.

claimThe 2003 US invasion toppled Saddam Hussein's regime, which had become brittle by that time.

War by Proxy: Iran's Growing Footprint in the Middle East - CSIS csis.org CSIS Mar 11, 2019 2 facts

claimThe 2003 U.S. invasion of Iraq and the subsequent establishment of a Shia-dominated government in Baghdad contributed to a rise in Iranian influence and an increase in IRGC-QF-supported militias.

accountThe 2003 U.S. invasion of Iraq and the subsequent inability of the United States to prevent Iran from filling the power vacuum, combined with the establishment of a Shia-dominated government in Baghdad, contributed to a rise in Iranian influence and an increase in IRGC-QF-supported militias.

The path forward on Iran and its proxy forces - Brookings Institution brookings.edu Brookings Mar 1, 2024 2 facts

claimThe 2003 U.S. invasion of Iraq, which eliminated the Baathist government, was a key factor in the convergence of diverse Iraqi Shiite militias under Iranian coordination.

claimHistorically, Iran's most valuable strategic openings have resulted from missteps by the United States and its regional partners, such as the 2003 U.S. invasion of Iraq and the 2018 withdrawal from the Joint Comprehensive Plan of Action.

United States Foreign Intelligence Relationships everycrsreport.com EveryCRSReport.com May 15, 2019 1 fact

claimThe Bush Administration cited reporting on Iraqi weapons of mass destruction as one reason for invading Iraq in 2003.

A Status Quo Power in a Changing Region: Iran's Regionalism in ... cambridge.org Cambridge University Press Dec 1, 2025 1 fact

claimThe US-led invasions of Afghanistan in 2001 and Iraq in 2003, combined with President George W. Bush labeling Iran as part of the 'axis of evil,' fundamentally altered Iran's security environment and forced a reassessment of its regional priorities.

We Bombed the Wrong Target Iran's Proxy Network Strategy irregularwarfare.org Irregular Warfare Initiative Mar 10, 2026 1 fact

claimThe 2003 Iraq War demonstrated that collapsing or attempting to collapse a regime is significantly easier than shaping the political outcome that follows.

Iran's Islamist Proxies in the Middle East - Wilson Center wilsoncenter.org Ashley Lane · Wilson Center Sep 12, 2023 1 fact

accountThe Badr Organization, a Shiite militia, was based in Iran during the rule of Saddam Hussein and returned to Iraq following the 2003 U.S. invasion.

Domestic and International Factors Affecting Iranian Foreign Policy ... academia.edu Academia.edu 1 fact

referenceAnoushiravan Ehteshami published 'Iran's International Posture After the Fall of Baghdad' in the Middle East Journal in 2004, analyzing Iran's foreign policy shifts following the 2003 invasion of Iraq.