This paper surveys the most important recent debates within the ethics of war. Sections 2 and 3 examine the principles governing the resort to war (jus ad bellum) and the principles governing conduct in war (jus in bello). In Section 4, we turn to the moral guidelines governing the ending and aftermath of war (jus post bellum). Finally, in Section 5 we look at recent debates on whether the jus ad bellum and the jus in bello can be evaluated independently (...) of each other. (shrink)

This article surveys the major historical developments in Western philosophical reflection on war. Section 2 outlines early development in Greek and Roman thought, up to and including Augustine. Section 3 details the systematization of Just War theory in Aquinas and his successors, especially Vitoria, Sua´rez, and Grotius. Section 4 examines the emergence of Perpetual Peace theory after Hobbes, focusing in particular on Rousseau and Kant. Finally, Section 5 outlines the central points of contention following the reemergence of Just War theory (...) in the 1970s. (shrink)

This paper offers a non-reductivist account of the requirement of legitimate authority in warfare. I first advance a distinction between private and public wars. A war is private where individuals defend their private rights with their private means. A war is public where it either aims to defend public rights or relies on public means. I argue that RLA applies to public war but not private war. A public war waged by a belligerent without legitimate authority involves a form of (...) illegitimate domination of the people. Contra the conventional wisdom that RLA is only an ad bellum principle, I show that RLA is also a vital in bello principle. Relying on the Kantian non-voluntarist account of political authority, I argue that only legitimate states have the right to wage public wars. However, I also contend that RLA is not an absolute requirement, even regarding the justice of public war. Under extremely unfavorable conditions, this requirement may be overridden by weighty considerations in favor of resorting to public war without legitimate authority. In sum, my account of RLA protects ordinary people from illegitimate coercion involved in guerrilla warfare in general yet generates proper permission for responsible, aspiring state founders to secure social justice by coercive means under extraordinary situations. (shrink)

Provides an opinionated overview of some recent debates within the ethics of war.

Traditional just war doctrine holds that political leaders are morally responsible for the decision to initiate war, while individual soldiers should be judged solely by their conduct in war. According to this view, soldiers fighting in an unjust war of aggression and soldiers on the opposing side seeking to defend their country are morally equal as long as each obeys the rules of combat. Revisionist scholars, however, maintain that soldiers who fight for an unjust cause bear at least some responsibility (...) for advancing an immoral end, even if they otherwise fight ethically. This article examines the attitudes of the American public regarding the moral equality of combatants. Utilizing an original survey experiment, we find that the public's moral reasoning is generally more consistent with that of the revisionists than with traditional just war theory. Americans in our study judged soldiers who participate in unjust wars as less ethical than soldiers in just wars, even when their battlefield conduct is identical, and a large proportion supported harsh punishments for soldiers simply for participating in unjust wars. We also find, however, that much of the American public is willing to extend the moral license of just cause significantly further than revisionist scholars advocate: half of the Americans in our survey were willing to allow an unambiguous war crime—a massacre of innocent women and children—to go unpunished when the act was committed by soldiers fighting for a just cause. Our findings suggest that incorporation of revisionist principles into the laws of war would reinforce dangerous moral intuitions encouraging the killing of civilians. (shrink)

Interest in just war theory has boomed in recent years, as a revisionist school of thought has challenged the orthodoxy of international law, most famously defended by Michael Walzer [1977]. These revisionist critics have targeted the two central principles governing the conduct of war (jus in bello): combatant equality and noncombatant immunity. The first states that combatants face the same permissions and constraints whether their cause is just or unjust. The second protects noncombatants from intentional attack. In response to these (...) critics, some philosophers have defended aspects of the old orthodoxy on novel grounds. Revisionists counter. As things stand, the prospects for progress are remote. In this paper, we offer a way forward. We argue that exclusive focus on first-order moral principles, such as combatant equality and noncombatant immunity, has led revisionist and orthodox just war theorists to engage in “proxy battles.” Their first-order moral disagreements are at least partly traceable to second-order disagreements about the nature and purpose of political theory. These deeper disputes have been central to the broader discipline of political theory for several years; we hope that bringing them to bear on the ethics of war will help us move beyond the present impasse. (shrink)

Rights-based approaches and consequentialist approaches to ethics are often seen as being diametrically opposed to one another. In one sense, they are. In another sense, however, they can be reconciled: a ‘global’ form of consequentialism might supply consequentialist foundations for a derivative morality that is non-consequentialist, and perhaps rights-based, in content. By way of case study to illustrate how this might work, I survey what a global consequentialist should think about a recent dispute between Jeff McMahan and Henry Shue on (...) the morality and laws of war. (shrink)

According to most accounts of just war theory, jus ad bellum is concerned with the morality of initiating war. This gives jus ad bellum a temporal dimension, making it a set of principles that are applied to judge belligerents’ actions at the outset of a war, but that cannot be revisited after a war begins. I challenge this synchronic conception of jus ad bellum by arguing that the considerations the principles of jus ad bellum are meant to judge can, and (...) often do, change substantially over the course of wars. It is inappropriate to determine the ad bellum justice of a war solely based on how the principles of jus ad bellum are satisfied at a war’s outset. Because of the mercurial nature of war, jus ad bellum principles should be applied diachronically, as moral norms that can be used to guide or to judge belligerents even after a war has been initiated. (shrink)

War has changed so much that it barely resembles the paradigmatic cases of armed conflict that just war theories and international humanitarian law seemed to have had in mind even a few decades ago. The changing character of war includes not only the use of new technology such as drones, but probably more problematically the changing temporal and spatial scope of war and the changing character of actors in war. These changes give rise to worries about what counts as war (...) and thus what norms to use in evaluating a particular conflict. In this paper, I develop an argument that the changing character of war gives us reasons to take reductionist revisions of just war theory seriously. By reductionist theories of war I mean those revisions within the just war tradition that suggest that we can use ordinary peacetime interpersonal analyses of moral responsibility and liability to harm to decide what justice requires in times of war. (shrink)

In war a soldier behaving properly should take into account a universal requirement not to kill, to be applied strictly in dealing with civilians, but at the same time to support the exception of taking the life of enemy combatants as an act of selfdefense. This is the usual way to distinguish morally the proper treatment to soldiers and civilians. In this article the author criticizes it and outlines a different way to understand and justify the moral distinction mentioned.

This essay addresses one of the central questions in the ongoing debate about just war theory: are soldiers morally responsible for serving in unjust wars? Francisco de Vitoria addressed this question in the sixteenth century using the concepts of invincible and vincible ignorance. He excused soldiers serving in unjust wars, if they did not know the war was unjust and if they did not have the means to overcome their ignorance; if they had the means, they were morally culpable. In (...) modern just war theory, ignorance is still used both to blame and excuse military service in unjust wars. This essay identifies ten different ways that scholars have used ignorance to argue about the moral responsibilities of soldiers. It then applies the different meanings of ignorance to soldiers serving in Western nations and, using Vitoria’s means tests, evaluates if modern soldiers do indeed have the means to overcome their ignorance. Since many soldiers do have the means, invincible ignorance should no longer be used as an excuse for their service in unjust wars; furthermore, soldiers may, in fact, be morally culpable for serving in them. (shrink)

War should be understood as an actual, intentional and widespread armed conflict between political communities. Thus, fisticuffs between individual persons do not count as a war, nor does a gang fight, nor does a feud on the order of the Hatfields versus the McCoys. War is a phenomenon which occurs only between political communities, defined as those entities which either are states or intend to become states (in order to allow for civil war). Classical war is international war, a war (...) between different states, like the two World Wars. But just as frequent is war within a state between rival groups or communities, like the American Civil War. Certain political pressure groups, like terrorist organizations, might also be considered “political communities,” in that they are associations of people with a political purpose and, indeed, many of them aspire to statehood or to influence the development of statehood in certain lands. (shrink)

This book-cover's announcement of a “new theory” of just war is likely just publisher's editorial hyperbole. The author, however, does not in the end require such outside assistance. From the outse...

Some contemporary Just War theorists, like Jeff McMahan, have recently built upon an individual right of self-defense to articulate moral rules of war that are at odds with commonly accepted views. For instance, they argue that in principle combatants who fight on the unjust side ought to be liable to punishment on that basis alone. Also, they reject the conclusion that combatants fighting on both sides are morally equal. In this paper, I argue that these theorists overextend their self-defense analysis (...) when it comes to the punishment of unjust combatants, and I show how in an important sense just and unjust combatants are morally equal. I contend that the individualistic and quid pro quo perspective of the self-defense analysis fails to consider properly how the international community, morally speaking, ought to treat combatants, and I set forth four elements of justice applicable to war, which, together, support the conclusion that in principle the international community should not take on the activity of punishing combatants solely for fighting on the unjust side. (shrink)

In the wake of the Cold War a characteristic style of genocide narratives emerged in the West. For the most part, philosophers did not pay attention to this development even though they are uniquely qualified to address arguments and conceptual issues discussed in this burgeoning genocide genre. While ostensibly a response to a specific recent article belonging to the genre, this essay offers an outline of an ethics of genocide narratives in the form of four lessons on how not to (...) write about genocide. It is argued that to the extent that works on the subject of genocide are dominated by narrativism, genocidalism, activism, or extreme pacifism, they cannot properly be classified as scholarly endeavors and must be met with resistance per the requirements of academic ethics and proper scholarly methodology. (shrink)

(2011). CHILD SOLDIERS AND KILLING IN SELF-DEFENCE: CHALLENGING THE ‘MORAL VIEW’ ON KILLING IN WAR. Journal of Military Ethics: Vol. 10, No. 1, pp. 36-51. doi: 10.1080/15027570.2011.561639.

This article examines, through a theoretical lens, two issues concerning equality under international law thrown up by the ongoing Russo-Ukrainian War: the equal treatment of belligerents on different sides under international humanitarian law (IHL), which is being contested by revisionist just war theorists, and the unequal treatment of Ukrainians with different genders assigned at birth who are trying to flee Ukraine, which is being contested under international human rights law (IHRL). By examining different conceptions of equality through the lens of (...) social ontology, this article distinguishes between the regulatory focus of IHL on individual agency and the regulatory focus of IHRL on social structures, which directly influence how ‘difference’ and ‘sameness’ are recognized and determined for the purpose of conceptualizing equality. Because of IHL’s focus on individuals, whose agency is limited in war, only highly agential conduct (e.g. targeting civilians) makes a ‘difference’ under IHL. Meanwhile, outside IHL’s regulatory focus, the different causes of states’ participation in war are evened out as the ‘same’ structured positions occupied by different individuals, warranting their same treatment according to belligerent equality. On the other hand, because of IHRL’s focus on social structures, which heavily condition the individuals, structural arrangements make a ‘difference’ under IHRL. Outside IHRL’s regulatory focus, individuals’ different innate characteristics such as sexual characteristics are evened out as the ‘same’ agential quality of being human, warranting their same treatment according to sex equality. The article argues that the contestations about these equality principles find deeper roots in their divergent social ontological visions, the revelation of which can open up new spaces for dialogue on and inquiry into a common social world that grounds the legal conceptions of equality. (shrink)

This essay considers some central arguments given by Helen Frowe and Seth Lazar regarding the permissibility of killing civilians in war. It raises some objections to their views and defends some alternative bases for weighing harms to combatants against harms to civilians.