Most contemporary conflicts can be characterized as ‘wars or conflicts amongst the people’. International military forces deployed in such conflicts are confronted with complex operational environments where the distinction between combatants and non-combatants is often impossible to make. At the same time, there is a moral requirement imposed on Western coalition forces to perform in a humane manner and to keep casualties to a minimum. Non-lethal weapons are expected to enable military forces to accomplish their mission without having to kill (...) or destroy. The extent to which these weapons meet that promise in real world conditions is the subject of debate. A defence technology assessment of non-lethal weapons is proposed that validates their utility and moral implications by considering the user, the weapon and the target in the context of the deployment situation. It will be illustrated that the technical parameters of the non-lethal weapons are no guarantee that the weapons will perform as intended as the user and target introduce many factors of uncertainty in real world situations. Although such uncertainties undermine the moral acceptability of non-lethal weapons, it is argued that the principle of non-lethality is compliant with the Just War Tradition principle of proportionality. The principles of non-combatant immunity and discrimination need to be re-calibrated given the human-centricity of many military intervention operations. (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)