Three traditions of thought dominate the ethics of war and peace: Realism; Pacifism; and Just War Theory (and, through just war theory, International Law). Perhaps there are other possible perspectives but it seems that very few theories on the ethics of war succeed in resisting ultimate classification into one of these traditions. They are clearly hegemonic in this regard.
Before discussing the central elements of each tradition, let's declare the basic conceptual differences between 'the big three' perspectives. The core, and controversial, proposition of just war theory is that, sometimes, states can have moral justification for resorting to armed force. War is sometimes, but of course not all the time, morally right. The idea here is not that the war in question is merely politically shrewd, or prudent, or bold and daring, but fully moral, just. It is an ethically appropriate use of mass political violence. World War II, on the Allied side, is always trotted out as the definitive example of a just and good war. Realism, by contrast, sports a profound skepticism about the application of moral concepts, such as justice, to the key problems of foreign policy. Power and national security, realists claim, motivate states during wartime and thus moral appeals are strictly wishful thinking. Talk of the morality of warfare is pure bunk: Ethics has got nothing to do with the rough-and-tumble world of global politics, where only the strong and cunning survive. A country should tend to its vital interests in security, influence over others, and economic growth - and not to moral ideals. Pacifism does not share realism's moral skepticism. For the pacifist, moral concepts can indeed be applied fruitfully to international affairs. It does make sense to ask whether a war is just: That is an important and meaningful issue. But the result of such normative application, in the case of war, is always that war should not be undertaken. Where just war theory is sometimes permissive with regard to war, pacifism is always prohibitive. For the pacifist, war is always wrong; there's always some better resolution to the problem than fighting.
1. 'They are clearly hegemonic in this regard'. 'Hegemonic' stands for
(A) Paramount.
(B) Trivial.
(C) Peripheral.
(D) Illusory.
(E) Reactionary.
2. 'Realism' believes all of the following EXCEPT:
(A) The claim that nations wage a war because they have a moral incentive.
(B) A nation should cater to its prerequisites instead of aiming to uphold ethical paradigms.
(C) There is no sense in co-relating armed conflict to probity.
(D) It is doubtful that disputes on international relations can be solved using ethical parameters.
(E) At any given time, a nation cannot justify war as the last resort to find a solution for international problems.