Abstract

Just war doctrine includes a stringent prohibition against killing and otherwise harming 'innocents', those of one's enemy population who are not engaged in the act of making war. This category includes most enemy civilians. The prohibition cannot reasonably prohibit all possible harms to these innocents. The doctrine of double effect is a way of limiting the prohibition to acts of intentionally harming innocents. This paper explores the application of double effect reasoning in this context, with a view towards determining whether it contains resources to prevent rationalizing and mistaken applications. I argue that, although there are hard cases, the doctrine can be applied rigorously so as to expose rationalizing applications and mistakes.