The Iraq War began on March 20, 2003, with the invasion of Iraq by a United States-led coalition that overthrew the government of Saddam Hussein.

The United States government stated that the invasion of Iraq was necessary to remove Saddam Hussein from power, to find weapons of mass destruction, and to liberate the Iraqi people.

Operation Iraqi Freedom was the name of the military operation that led to the overthrow of Saddam Hussein in 2003.

According to the Department of Defense, 4,486 American soldiers died in the Iraq War.

The Iraq Body Count project estimated that between 184,382 and 207,156 Iraqi civilians died in the Iraq War.

Saddam Hussein was the Iraqi leader who was overthrown in the Iraq War.

Fallujah was the site of a major battle in the Iraq War in 2004.

Tommy Franks was the American general who led the invasion of Iraq in 2003.

The Sunni Triangle was the name of the Iraqi insurgency group that fought against the American-led coalition.

The Coalition of the Willing was the name of the American-led coalition that invaded Iraq in 2003.

Resolution 1441 was the United Nations resolution that authorized the use of force against Iraq in 2002.

George W. Bush was the American president who ordered the invasion of Iraq in 2003.

Ayad Allawi was the Iraqi prime minister who was elected after the invasion in 2004.

Dick Cheney was the American vice president who was a strong advocate for the invasion of Iraq in 2003.

Colin Powell was the American secretary of state who resigned in protest of the invasion of Iraq in 2003.