Pope Francis’s Contribution to Catholic Thinking and Acting on War and Peace

Abstract

In modern times, the papacy has consistently advocated peace, disarmament, and peaceful resolution of conflicts, limiting the scope of traditional just war theory, particularly in the era of weapons of mass destruction. However, no pope has gone as far as Pope Francis, who has stated that there is no such thing as just war and that “Only Peace is Just.” This contribution examines how Francis expressed and developed his thought in the context of his humanitarian diplomacy and theological thinking during the first ten years of his pontificate. In the last part, I argue that the Ukraine war is a test for Pope Francis, who has repeatedly called for peace negotiations and condemned arms supply, while recognizing the moral right for Ukrainian self-defense. While this may seem contradictory, his policy shows Francis’s deeper conviction that “war is always a defeat for humanity.” More interested in peace-making and assisting victims than in doctrinal issues, Francis has not jettisoned the just war concept in theory, but has done so in his witness and actions.