American troops run to their vehicle during a skirmish between U.S. and Iraqi insurgents in Baghdad, Iraq, in 2007.

Photograph by Luke Thornberry, MyShot
  • On March 19, 2003, the United States and its allies declared war on Iraq. U.S. President George W. Bush thought the Iraqi government, led by President Saddam Hussein, was trying to harm the United States and its allies with weapons of mass destruction. Weapons of mass destruction are weapons that are able to kill many people at the same time. Nuclear weapons are weapons of mass destruction.

    Weapons of mass destruction were never found in Iraq. Saddam Hussein was executed. The war lasted eight years.

  • Term Part of Speech Definition Encyclopedic Entry
    execute Verb

    to put to death by order of the law or in a well-planned manner.

    government Noun

    system or order of a nation, state, or other political unit.

    nuclear weapon Noun

    explosive device that draws power from the splitting and combining of atomic nuclei.

    weapon Noun

    tool to hurt or combat an opponent.