The Invasion of Iraq in 2003 was a major military conflict led by a coalition of forces from the United States, United Kingdom, Australia, and Poland. The invasion was part of the Iraq War, which was launched in response to claims that Iraq had weapons of mass destruction and was a threat to
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The 2003 invasion of Iraq was the first stage of the Iraq War. The invasion began on 20 March 2003 and lasted just over one month, including 26 days of major combat operations. The invasion was conducted by a United States-led coalition of mainly American, British, Australian, and Polish troops.