On Monday, Pope Leo XIV announced a collaboration with the artificial intelligence company Anthropic to explore ethical frameworks for AI in the context of warfare. During the launch of his first encyclical, the Pope expressed concerns over the concentration of AI control and its potential to exacerbate global conflicts. He highlighted the necessity of protecting the 'grandeur of humanity' amidst technological advancements and proposed that military applications of AI should adhere to stringent ethical guidelines. The Pope criticized the traditional 'just war' doctrine, stating it is outdated and that military action should only be justified for self-defense. He emphasized that reliance on violence and weapons leads to severe repercussions for civilian populations and called for the promotion of dialogue, diplomacy, and forgiveness as more effective means of conflict resolution. This encyclical marks a significant moment in the Catholic Church's engagement with contemporary issues surrounding AI, reflecting its commitment to uphold human dignity and justice in the face of rapid technological changes.