US-Led Coalition Invades Iraq

Context

Following the September 11, 2001 attacks, the administration of President George W. Bush identified Iraq under Saddam Hussein as a potential threat due to its history of weapons programs and alleged ties to terrorism. Earlier UN resolutions had required Iraq to dismantle its weapons capabilities after the 1991 Gulf War, but inspections in the early 2000s produced disputed intelligence assessments about ongoing programs. Diplomatic efforts centered on a new UN Security Council resolution authorizing force, but permanent members France, Russia, and Germany opposed military action without further inspections. The United States assembled a “coalition of the willing” that included the United Kingdom under Prime Minister Tony Blair, Australia, and Poland, while deploying roughly 160,000 troops near the Iraqi-Kuwaiti border.

What Happened

At approximately 02:30 UTC on March 20, coalition aircraft struck targets in Baghdad, including a leadership bunker complex where Saddam Hussein was believed to be located. President Bush addressed the nation hours later, stating that American and coalition forces had begun operations to disarm Iraq. Ground forces, primarily U.S. Army and Marine units supported by British, Australian, and Polish contingents, crossed into southern Iraq from Kuwait the same day. Special operations teams and Kurdish fighters operated in the north, while the main southern thrust encountered resistance from Iraqi regular forces and irregular Fedayeen Saddam militias, notably at Nasiriyah. British forces secured the Basra region, and rapid armored advances bypassed many urban centers. Air supremacy allowed coalition aircraft to strike command nodes across the country, disrupting Iraqi coordination.

Aftermath

Baghdad fell on April 9 after several days of fighting, with Iraqi civilians and U.S. troops toppling a large statue of Saddam Hussein in Firdos Square. Other major cities including Kirkuk and Tikrit were taken within the following week. On May 1, President Bush declared the end of major combat operations aboard the USS Abraham Lincoln. The Ba’athist government collapsed, Saddam Hussein went into hiding, and a U.S.-led occupation authority assumed control. Initial expectations of a quick transition gave way to the emergence of an insurgency involving former regime elements and sectarian groups.

Legacy

The invasion removed Saddam Hussein but produced no stockpiles of weapons of mass destruction, prompting widespread criticism of prewar intelligence. Years of insurgency and civil conflict followed, contributing to hundreds of thousands of Iraqi deaths and prolonged instability across the region. The war influenced global debates on preemptive military action, strained relations with several European allies, and shaped subsequent U.S. foreign-policy discussions about nation-building and multilateral authorization for force.