Jeff McMahan urges us to reject the view, dominant throughout history, that mere participation in an unjust war is not wrong.

This article explores the personal responsibility of soldiers for fighting in unjust wars. Its reference point is the position developed by Jeff McMahan in his recent Killing in War. I claim that McMahan fails to give sufficient importance to institutional justifications on this matter. I argue for this by developing what I call the argument to democratic duty, which I claim embodies much current thinking about the obligations of soldiers in a democratic culture. The upshot of my argument is that (...) soldiers are placed in a contradictory position, between personal and institutional obligations. This is one sense in which soldiers can be victimized by the institution of war itself. (shrink)

Previous edition, 1st, published in 1971.

Victor Tadros thinks the idea that in a conflict both sides may permissibly use force should (typically) be rejected. Thus, he thinks that two shipwrecked persons should not fight for the only available flotsam (which can only carry one person) but instead toss a coin, and that a bomber justifiably attacking an ammunitions factory must not be counterattacked by the innocent bystanders he endangers. I shall argue that Tadros’s claim rests on unwarranted assumptions and is also mistaken in the light (...) of the moral reasoning that he himself offers in support of his ‘means principle’. (shrink)

This paper is not so much concerned with the question under which circumstances self-defense is justified, but rather with other normative features of self-defense as well as with the source of the self-defense justification. I will argue that the aggressor’s rights-forfeiture alone – and hence the liberty-right of the defender to defend himself – cannot explain the intuitively obvious fact that a prohibition on self-defense would wrong victims of attack. This can only be explained by conceiving of self-defense also as (...) a claim-right. However, I will also argue that a claim-right cannot ground the self-defense justification either. Rather, what grounds the self-defense justification and its particular strength and scope is the fact that self-defense is an act-specific agent-relative prerogative: a defender is allowed to give particularly grave weight to his interest in engaging in self-defense, which distinguishes self-defense from most other acts. This is not the same as saying that he has a right or a liberty to engage in self-defense. Thus, self-defense, understood as a normative concept, is a claim-right, a liberty-right, and an act-specific agent-relative prerogative. (shrink)

According to the dominant position in the just war tradition from Augustine to Anscombe and beyond, there is no "moral equality of combatants." That is, on the traditional view the combatants participating in a justified war may kill their enemy combatants participating in an unjustified war - but not vice versa (barring certain qualifications). I shall argue here, however, that in the large number of wars (and in practically all modern wars) where the combatants on the justified side violate the (...) rights of innocent people ("collateral damage"), these combatants are in fact liable to attack by the combatants on the unjustified side. I will support this view with a rights-based account of liability to attack and then defend it against a number of objections raised in particular by Jeff McMahan. The result is that the thesis of the moral equality of combatants holds good for a large range of armed conflicts while the opposing thesis is of very limited practical relevance. (shrink)

Even among those who find lethal defense against non-responsible threats, innocent aggressors, or justified aggressors justified even in one to one cases, there is a debate as to what the best explanation of this permissibility is. The contenders in this debate are the liability account, which holds that the non-responsible or justified human targets of the defensive measures are liable to attack, and the justified infringement account, which claims that the targets retain their right not to be attacked but may (...) be attacked anyway, even in one to one situations. Given that we normally think that rights are trumps, this latter claim is counter-intuitive and rather surprising, and therefore in need of justification and explanation. So far only Jonathan Quong has actually tried to provide an explanation; however, I will argue that his explanation fails and that Quong’s own account of liability is misguided. I then address Helen Frowe’s critique of the liability account. She makes the important concession that the tactical bomber has to compensate his victims, but she tries to block the conclusion that he must therefore be liable. I will demonstrate that her attempt to explain away liability fails once that concession is made. (shrink)

Contrary to what has been alleged, the moral equivalence of combatants (MEC) is not a doctrine that was expressly developed by the traditional theorists of just war. Working from the axiom that just cause is unilateral, they did not embrace a conception of public war that included MEC. Indeed, MEC was introduced in the early fifteenth century as a challenge to the then reigning just war paradigm. It does not follow, however, that the distinction between private and public war had (...) no place in the traditional teaching. Thomas Aquinas and his successors did not analyse just war by extrapolation from the related idea of self-defense. Rather, they likened just war to a legal proceeding that could solely be undertaken by persons possessed of legitimate authority. For this reason, just war was first and foremost public war. Private war was deemed ?war? only in a secondary and reduced sense of the term. It was accordingly understood that public war should be waged and its morality judged by reference to a set of norms that are not directly reducible to those governing private self (and other)-defense. (shrink)

In this article I attempt to show conclusively that the apparent intrinsic difference between causing collateral damage and directly attacking innocents is an illusion. I show how eleven morally irrelevant alterations can transform an apparently permissible case of harming as a side-effect into an apparently impermissible case of harming as a means. The alterations are as obviously irrelevant as the victims’ skin colour, and consistently treating them as relevant would have unacceptable implications for choices between more and less harmful ways (...) of securing greater goods. This shows not only how the principles philosophers have proposed for distinguishing between these cases cannot withstand scrutiny, but how we can be sure that there are no relevant differences yet to be discovered. I conclude by considering reasons to think that there are deontological constraints against harming, but that they apply just as forcefully against collateral harms as they do against intended harms. (shrink)

This article is a response to commentaries on my book, Killing in War, by Cécile Fabre, Alex Leveringhaus and Victor Tadros. It discusses the implications of the approach I have defended for the morality of war for such issues as internecine killing in war, humanitarian intervention and the bases of individual liability to attack in war.

The reductivist view of war holds that the moral rules of killing in war can be reduced to the moral rules that govern killing between individuals. Noam Zohar objects to reductivism on the grounds that the account of individual self-defence that best supports the rules of war will inadvertently sanction terrorist killings of non-combatants. I argue that even an extended account of self-defence—that is, an account that permits killing at least some innocent people to save one's own life—can support a (...) prohibition on terrorism, provided that it distinguishes between direct and indirect threats. What such an account cannot support is the blanket immunity of non-combatants to defensive killing. If a non-combatant is morally responsible for indirectly threatening in an unjust war, she can be liable to defensive killing. However, this gives us reason to revise our account of permissible killing in war, rather than to reject the reductivist account. (shrink)

A person who is liable to defensive harm has forfeited his rights against the imposition of the harm, and so is not wronged if that harm is imposed. A number of philosophers, most notably Jeff McMahan, argue for an instrumental account of liability, whereby a person is liable to defensive harm when he is either morally or culpably responsible for an unjust threat of harm to others, and when the imposition of defensive harm is necessary to avert the threatened unjust (...) harm. Others may favour a purely noninstrumental account of liability: one that looks only to the past behaviour of the potentially liable person. We argue that both views are vulnerable to serious objections. Instead we develop and defend a new view of liability to defensive harm: the pluralist account. The pluralist account states that liability to defensive harm has at least two bases. First, if an attacker is morally or culpably responsible for an unjust attack then he has forfeited what we call his agency right, and in doing so he has made himself partially liable to defensive harm. Whether the attacker is fully liable to defensive harm depends, however, on whether the imposition of defensive harm would infringe a different right held by the attacker: his humanitarian right. Humanitarian rights are rights to be provided with urgently needed resources or to be protected from serious harms when others can do so at reasonably low cost. We argue the pluralist account avoids the objections to which the instrumental and noninstrumental views are vulnerable, coheres with our intuitive reactions in a wide range of cases, and sheds new light on the way different rights combine to determine a person's liability to suffer harm. (shrink)

In this book Uwe Steinhoff describes and explains the basic tenets of just war theory and gives a precise, succinct and highly critical account of its present status and of the most important and controversial current debates surrounding it. Rejecting certain in effect medieval assumptions of traditional just war theory and advancing a liberal outlook, Steinhoff argues that every single individual is a legitimate authority and has under certain circumstances the right to declare war on others or the state. He (...) also argues that the just cause cannot be established independently of the other criteria of jus ad bellum (the justification of entering a war), except for right intention, which he interprets more leniently than the tradition does. Turning to jus in bello (which governs the conduct of a war) he criticizes the Doctrine of Double Effect and concludes that insofar as wars kill innocents, and be it as "collateral damage", they cannot be just but at best justified as the lesser evil. Steinhoff gives particular attention to the question why soldiers, allegedly, are legitimate targets and civilians not. Discussing four approaches to the explanation of the difference he argues that the four principles underlying them all need to be taken into account and outlines how their weighing can proceed if applied to concrete cases. The resulting approach does not square the distinction between legitimate and illegitimate targets with the distinction between soldiers and civilians, which has extremely important consequences for the conduct of war. Finally, Steinhoff analyses the concept of terrorism and argues that some forms of "terrorism" are actually not terrorism at all and that even terrorism proper can under certain circumstances be justified. (shrink)