To legitimize US invasion of Iraq, Bush fabricated fake intelligence reports, and depended solely on propaganda; he manipulated language in a well-calculated manner; most particularly, the metaphors chosen and devised for his speeches were such that convinced the US citizens about the legitimacy of the invasion, elicited financial support of the European allies and moral support of the majority of the world community. This research work used discourse analysis to study the metaphors that were used by George Bush in the speeches he made on 8 different occasions, and the theoretical framework used in it is the combination of critical discourse analysis CDA with postcolonial theory concept of orientalism.It utilized both qualitative and quantitative data collection tools.It found that most of the task was accomplished through the linguistic manipulation in the shape of metaphor used to dehumanize the enemy, which first made the US citizens feel as victims to the jealousy of rogue Muslim states for intending to completely annihilate them; then, it made appeal to their sense of justice, sense of security, and right to self-defense. By grouping the world citizens into Us and Them groups, the innocent, peace-loving and the war-mongers, the angels and the devils, and then by placing themselves and the rest of the world among the first group and placing the powerfulMuslims states among the second group, the US exploited the feelings and thoughts of all. Despite the UN and the rest of the world having come to know the sheer lies of the US now, the US still has managed to flog a dead horse and blind-fold majority of the world through this linguistic manipulation in the form of using dehumanizing metaphors
