Some recent authors have argued that Aquinas deliberately integrated a pacifist outlook into his just war theory. Others, by contrast, have maintained that his rejection of pacifism was unequivocal. The present article attempts to set the historical record straight by an examination of Aquinas's writings on this topic. In addition to Q. 40, A. 1 of Summa theologiae II–II, the text usually cited in this connection, this article considers the biblical commentaries where Aquinas explains how the Gospel “precepts of patience,” (...) especially Matthew 5:39, “Do not resist evil,” should be interpreted in light of the doctrine of just war. The article concludes that Aquinas formulated a two-stage theory whereby pacifism was rejected as a suitable form of agency for the state (respublica), while it was affirmed as the appropriate response to evil for the agency of the church (ecclesia). (shrink)

This paper surveys the most important recent debates within the ethics of war. Sections 2 and 3 examine the principles governing the resort to war (jus ad bellum) and the principles governing conduct in war (jus in bello). In Section 4, we turn to the moral guidelines governing the ending and aftermath of war (jus post bellum). Finally, in Section 5 we look at recent debates on whether the jus ad bellum and the jus in bello can be evaluated independently (...) of each other. (shrink)