Pope Leo XIV calls for a ban on lethal autonomous weapons

A call for disarmament

Pope Leo XIV has issued a formal plea for the disarmament of artificial intelligence systems. During a Papal Address on Friday, he specifically targeted the development and use of lethal autonomous weapons. He is urging United Nations member states to take concrete actions to ban these technologies during their upcoming meeting in Geneva next month.

The Pope emphasizes that humans hold the ultimate responsibility to guide, modify, and reject how AI is applied in the world. He argues that the technology should not operate in a vacuum but must be steered by human intent. This stance positions the Vatican as a vocal advocate for restricting the most dangerous applications of modern computing.

This latest address builds on a series of statements regarding the risks of rapid technological advancement. By calling for a ban on autonomous weapons, the Pope is seeking to establish a clear boundary between human agency and machine execution. He wants to ensure that the power of AI does not outpace the ability of people to control its consequences.

Tools versus persons

A central theme of the Pope's message is the distinction between human beings and machines. He explicitly stated that "Machines are tools, not persons" during his address. This distinction is intended to prevent the granting of rights or legal personhood to AI systems, which he warns could be dangerous.

By framing AI as a tool, the Pope reinforces the idea that technology should serve human needs rather than exist as an independent entity. He suggests that treating machines as persons could lead to a dilution of human responsibility. His goal is to keep the focus on the people who create, deploy, and manage these systems.

This philosophy aligns with his earlier work on safeguarding the human person in the age of AI. He believes that the human element must remain at the center of technological progress. By rejecting the idea of AI personhood, he seeks to ensure that humans remain the primary subjects of law and morality.

Human oversight in force

The Pope is particularly concerned with how AI might be used in matters of life, freedom, and the use of force. He argues that these specific types of decisions must always be subject to effective, informed, and responsible human oversight. He wants to prevent a scenario where a machine makes a final decision on a life-or-death matter without a person in the loop.

This position echoes previous statements made by Pope Francis in 2024. Francis also called for a ban on autonomous weapons, stating that no machine should ever choose to take a human life. The current Pope is continuing this trajectory by demanding that human intervention be a non-negotiable requirement for high-stakes AI use.

The Vatican's stance suggests a desire for a

A legacy of technological focus

Pope Leo XIV suggests that his very name was chosen to reflect his role in confronting modern technological advances. He draws a historical parallel to Pope Leo XIII, who presided over the Catholic Church during the Industrial Revolution. This suggests a long-term commitment to addressing how major shifts in production and technology affect society.

This focus on the human person has been a consistent theme in his work since May. His first major papal document highlighted the need for safeguarding individuals in the era of artificial intelligence. By connecting current AI concerns to historical industrial shifts, he frames the current moment as a period requiring deep moral reflection.

Global standards and accountability

The Pope concludes his address by calling on international institutions to protect the common good from risks associated with AI. He advocates for the creation of shared standards and independent oversight to manage these technologies. He wants to ensure that the development of AI is not left to private interests alone but is governed by collective agreements.

A key part of this vision includes clear mechanisms of accountability for any harm caused by these systems. He argues that decisions regarding AI must be able to be examined and challenged when necessary. By seeking appropriate remedies for any damages, he aims to create a framework where humans remain responsible for the consequences of the tools they build.