The desire to defend a state against attacks by a non-state actor requires thinking about counter-attacking without violating the sovereign equality of the territorial state because targeting a non-state actor on the territory of that state may violate its sovereignty. This paper evaluates the main views on self-defense by states against non-state actors by studying the Just War Theory and argues that self-defense against a non-state actor is allowed if the counter-attack complies with the principle of sovereign equality. Sovereign equality (...) is the prohibition of states from dominion over other states because states are equal to one another. This principle can be respected by allowing self-defense against non-state actors to occur only if the state consented to the use of force on its territory or if that state is incapable of controlling or unwilling to control the non-state actor. (shrink)

There is much to admire in Michael Walzer’s discussion of terrorism and just war. I particularly applaud his insistence that liability to attack is a matter of action rather than membership or collective identity. “It is,” he writes, “the extension of violence or the threat..

Recent work on the ethics of war has struggled to simultaneously justify two central tenets of international law: the Permission to kill enemy combatants, and the Prohibition on targeting enemy noncombatants. Recently, just war theorists have turned to collectivist considerations as a way out of this problem. In this paper, I reject the argument that all and only unjust combatants are liable to be killed in virtue of their complicity in the wrongful war fought by their side, and that noncombatants (...) are not permissible targets because they are not complicit. I then argue that just combatants have some reason to direct force against unjust combatants rather than unjust noncombatants, because they should respect the reasonable self-determining decisions of other political communities, when those communities settle on the distribution of a negative surplus of cost for which they are collectively but not individually responsible. These collectivist reasons will not fully justify the Permission and the Prohibition, but they can contribute to that justification. (shrink)

Frequently, the just war principle of noncombatant immunity is interpreted as morally prohibiting the intentional targeting of noncombatants. Apparently, many just war theorists assume that to target means to (intend to) kill. Now that effective nonlethal weapons have been envisaged, it should be evident that there is no conceptual connection between intentionally targeting and intentionally killing. For, using nonlethal weapons, there could be intentional targeting without intentional killing. This paper explores the question of whether the noncombatant immunity principle should be (...) revised, so as to allow uses of nonlethal weapons. Preliminary to answering this question, some other questions are explored, among which are the following. Why should a noncombatant immunity principle be accepted? Why is it morally permissible to intentionally target enemy combatants? Are noncombatants grievously harmed when they are incapacitated by nonlethal weapons? Is it morally permissible to intentionally incapacitate enemy combatants with nonlethal weapons, while knowingly but not intentionally incapacitating noncombatants? In order to focus on moral questions involving nonlethal weapons, questions about their effectiveness or legality are set aside. Instead of the idea of noncombatant immunity as expressed above, a delimited principle of noncombatant immunity is proposed—namely, that, in the conduct of war, the intentional grave injuring or killing of noncombatants is morally prohibited. Also proposed is a principle of noncombatant targeting, which would allow some uses of nonlethal weapons to intentionally incapacitate noncombatants. (shrink)

Contemporary just war thinking has mostly been split into two competing camps, namely, Michael Walzer’s approach and its revisionist critics. While Walzerians employ a casuistical method, most revisionists resort to analytical philosophy’s reflective equilibrium. Importantly, besides employing different methods, the two sides also disagree on substantive issues. This article focuses on one such issue, the moral equality of combatants, arguing that while a methodological reconciliation between the two camps is impossible, contemporary debate would benefit from a ‘third-way’ approach. Presenting James (...) Turner Johnson’s historical method as such an approach, the article suggests that while revisionists are correct in considering the symmetry thesis as ethically indefensible, in order to arrive at this judgement, it is not necessary to employ far-fetched thought experiments and the use of historical cases is preferable. The root cause of Walzer’s problematic reasoning vis-à-vis the symmetry thesis, the histori... (shrink)

Terrorist violence is often condemned for targeting innocents or non-combatants. There are two objections to this line of argument. First, one may doubt that terrorism is necessarily directed against innocents or non-combatants. However, I will focus on the second objection, according to which there may be exceptions from the prohibition against killing the innocent. In my article I will elaborate whether lethal terrorism against innocents can be justified in a supreme emergency. Starting from a critique of Michael Walzer’s account of (...) supreme emergency, I will argue that the supreme emergency exemption justifies the resort to terrorism against innocents to avert moral disasters such as genocide and ethnic cleansing, provided that the criteria of last resort, proportionality and public declaration are satisfied. (shrink)

Contemporary just war theory is divided into two broad camps: revisionists and traditionalists. Traditionalists seek to provide moral foundations for something close to current international law, and in particular the laws of armed conflict. Although they propose improvements, they do so cautiously. Revisionists argue that international law is at best a pragmatic fiction—it lacks deeper moral foundations. In this article, I present the contemporary history of analytical just war theory, from the origins of contemporary traditionalist just war theory in Michael (...) Walzer's work to the revisionist critique of Walzer and the subsequent revival of traditionalism. I discuss central questions of methodology, as well as consider the morality of resorting to war and the morality of conduct in war. I show that although the revisionists exposed philosophical shortcomings in Walzer's arguments, their radical conclusions should prompt us not to reject the broad contemporary consensus, but instead to seek better arguments to underpin it. (shrink)

Modern analytical just war theory starts with Michael Walzer's defense of key tenets of the laws of war in his Just and Unjust Wars. Walzer advocates noncombatant immunity, proportionality, and combatant equality: combatants in war must target only combatants; unintentional harms that they inflict on noncombatants must be proportionate to the military objective secured; and combatants who abide by these principles fight permissibly, regardless of their aims. In recent years, the revisionist school of just war theory, led by Jeff McMahan, (...) has radically undermined Walzer's defense of these principles. This essay situates Walzer's and the revisionists’ arguments, before illustrating the disturbing vision of the morality of war that results from revisionist premises. It concludes by showing how broadly Walzerian conclusions can be defended using more reliable foundations. (shrink)