Abstract
The doctrine of the moral equality of combatants holds that combatants
on either side of a war have equal moral status, even if one side is
fighting a just war while the other is not. This chapter examines
arguments that have been offered for and against this doctrine,
including the collectivist position famously articulated by Walzer and
McMahan’s influential individualist critique. We also explore
collectivist positions that have rejected the moral equality doctrine
and arguments that some individualists have offered in its favor. We
defend a non-categorical version of the moral equality doctrine,
according to which combatants on either side of a just war sometimes
(but not always) have equal moral status. On our view, some degree of
culpability is necessary for liability, and non-culpable combatants
may therefore sometimes remain non-liable even when they fight for an
unjust cause.