Was Iraq war justified?

Iraq has been a center of war for the past decade. In the last decade, Iraq has developed the weapons of mass destruction, as claimed by United States. According to President Bush, these weapons of mass destructions are an open threat to this country and the rest of the world, and to ensure the world peace, these weapons of mass destructions must be eliminated before they are used against us or any other country. But according to Gerard Bradley, this war must be justified in accordance with Just war theory. The question here arises that: Has United States launched an attack against Iraq to punish them for past injustices they have done to us or to simply disarm Iraq for the sake of the h...