Here is the text of the Bush speech earlier this evening. Some quotes:

Many Iraqis can hear me tonight in a translated radio broadcast, and I have a message for them: If we must begin a military campaign, it will be directed against the lawless men who rule your country and not against you. As our coalition takes away their power, we will deliver the food and medicine you need. We will tear down the apparatus of terror and we will help you to build a new Iraq that is prosperous and free

And all Iraqi military and civilian personnel should listen carefully to this warning: In any conflict, your fate will depend on your actions. Do not destroy oil wells, a source of wealth that belongs to the Iraqi people. Do not obey any command to use weapons of mass destruction against anyone, including the Iraqi people. War crimes will be prosecuted, war criminals will be punished and it will be no defense to say, "I was just following orders."

The cause of peace requires all free nations to recognize new and undeniable realities. In the 20th century, some chose to appease murderous dictators whose threats were allowed to grow into genocide and global war.

In this century, when evil men plot chemical, biological and nuclear terror, a policy of appeasement could bring destruction of a kind never before seen on this earth.

Terrorists and terrorist states do not reveal these threats with fair notice in formal declarations. And responding to such enemies only after they have struck first is not self defense. It is suicide. The security of the world requires disarming Saddam Hussein now.