Here I distinguish the four logically possible ways in which nuclear weapons might be used: in an all?out nuclear strike, either first or second; or in a limited strike, either first or second. I go on to show that neither of the two most basic moral perspectives, consequentialistic or deontological, would permit nuclear weapons to be used in any of those four ways; nor would they permit an empty threat to use them. Nuclear weapons are thus shown to be morally (...) useless. Given the moral opportunity costs of maintaining this morally useless arsenal, nuclear weapons should therefore be abandoned, universally if possible and unilaterally if need be. (shrink)

The practices of using hostages to obtain concessions and using human shields to deter aggression share an important characteristic which warrants a univocal reference to both sorts of conduct: they both involve manipulating our commitment to morality, as a means to achieving wrongful ends. I call this type of conduct “moral coercion”. In this paper I (a) present an account of moral coercion by linking it to coercion more generally, (b) determine whether and to what degree the coerced agent is (...) liable for the harms resulting from acceding to moral coercion, and (c) investigate factors relevant to determining whether we ought to accede to moral coercion. In so doing, I provide grounds for the intuition that we “allow evil to succeed” when we accede to moral coercion. (shrink)