Magnifica Humanitas §197

¹⁹⁷ The above-mentioned scenario is linked to the unceasing development of weapons systems, particularly those involving AI. The Holy See has recently observed that the growing ease with which autonomous weapons systems can be deployed makes war more “feasible” and less subject to human control. This violates the principle that armed force should be used only as a last resort in cases of legitimate self-defense. For this reason, the development and use of AI in warfare must be subject to the most rigorous ethical constraints, to guarantee respect for human dignity and the sanctity of life and to avoid a race to develop such arms.