The official reason that the president (George Bush) gave was that Iraq had weapons of mass destruction, or nuclear weapons, that were potentially harmful to the USA.
The unofficial reason was that America had had enough of Saddam Hussein and wanted him out of government.
For additional reasons for the conflict, please see the related questions.
The US invaded Iraq on March 20, 2003.
The US invaded Iraq on March 20, 2003.
Iraq had invaded Kuwait.
The US invaded Granada in 1983.
The country in question is IRAQ.
The U.S. believed that Iraq possessed weapons of mass destruction
The first Iraq war was one of the shortest conflicts the US was ever involved in. It began on January 17, 1991.
Iraq .
Oil, greed, & stupidity.
Iraq & Afganistan
Iraq invaded Kuwait and Suadi Arabi
Iraq invaded oil rich Kuwait, and the US ordered Iraq out of that country. They refused, and were removed by force.