Realists describe war as an inevitable outcome of the anarchical international system in which states interact with each other. Based on this premise, throughout the centuries, has been witnessed the flourishing of a tradition of thought focusing on the ethics of war: The Just War Tradition. Its central hypothesis is that the use of force can be morally justified, or in other words that war can be morally right. This view differs from the other traditions of thinking that examine the relation between war and politics such as Pacifism and Realism. Indeed, they respectively claim that war is unjust on its own and that war has nothing to do with morality.
Within the Just War tradition,