CASUALTY RECORD // March 20, 2003
Iraq War
Estimated casualties — killed, wounded, captured, and missing — by side, with confidence labels per surviving record.
Casualties by side
2 sides catalogued · combined 25,290–62,690 estimated
Coalition of the willing
17,690
Medium-confidence figure
Ba'athist Iraq
7,600–45,000
Medium-confidence figure
Battle context
The Iraq War, beginning with the March 2003 coalition invasion, resulted in the overthrow of Saddam Hussein's Ba'athist government and initiated a prolonged US occupation of Iraq. The conventional military phase gave way to a sustained insurgency against coalition forces and the newly established Iraqi government, a dynamic that defined the conflict's trajectory through 2011. Coalition casualties of over 17,000 and Iraqi combatant losses ranging from several thousand to tens of thousands reflected the scale of sustained operations across both phases. US forces formally withdrew in 2011, but the war's consequences extended further: by 2014, instability in Iraq drew US forces back under a new coalition mandate to counter the Islamic State insurgency, demonstrating that the conflict's 2011 conclusion was a transition rather than a resolution. Within the broader War on Terrorism, the Iraq War became a central and contested theater, shaping US military strategy, coalition politics, and the regional order for more than a decade.
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