Aside from reasons of self defense, what was the other rationale that the United States and Great Britain used to support their case for the invasion of Iraq in 2003?

Question

Quizplus · Accepted Answer

The United States and Great Britain claimed that the leader of Iraq, Saddam Hussein, ignored earlier Security Council resolutions. Although they also argued that Saddam was a tyrant who had killed his own people and that the existence of weapons of mass destruction threatened the world, these claims were later found to be false.

Aside from Reasons of Self Defense, What Was the Other