In this paper we will speak about how metaphors are used to justify wars. Metaphors structure our thought, as Lakoff and Johnson proposed in their cognitive theory of metaphor. We will see the Lakoff'' s ideas about how metaphors were used to justify Irak war in the 90s and we will try to apply these ideas to the justification of Irak war in the 2000s. We will try to figure out what kind of information is hidden by these metaphors and what kind of ideas are suggested by these concrete metaphors.