Pope Leo XIV issued one of the strongest Vatican warnings yet about artificial intelligence and autonomous weapons, arguing that humanity risks losing moral control over warfare and technological power. In his first major encyclical, Magnifica Humanitas (“Magnificent Humanity”), the pope called on world leaders to establish strict international regulations for AI systems before they become too deeply embedded in military and political structures.
A major focus of the document was the danger of AI-driven weapons operating beyond meaningful human oversight. Pope Leo warned that delegating life-and-death decisions to machines could lower the threshold for war, distance humans from the consequences of violence, and normalize endless conflict. He criticized the growing alliance between governments, military institutions, and powerful technology companies developing autonomous systems for combat and surveillance.
The encyclical also addressed broader concerns about the social impact of artificial intelligence. Pope Leo argued that unchecked automation could damage human dignity, eliminate jobs, spread misinformation, and deepen inequality. He compared uncontrolled AI development to a modern “Tower of Babel,” warning that technological ambition without ethical responsibility could destabilize societies and place too much power in the hands of a small number of corporations and political actors.
The Vatican’s intervention reflects a growing global debate over AI governance and military applications of artificial intelligence. Pope Leo called for independent oversight, stronger legal frameworks, and international cooperation to ensure that AI remains under human control. His comments place the Catholic Church among the most prominent institutions pushing for global restrictions on autonomous weapons and stronger safeguards against the misuse of advanced AI technologies.