Pope Leo XIV began a four-day visit to France on Friday by addressing concerns about the impact of technological and military developments on humanity’s future. Speaking at the Élysée Palace to French President Emmanuel Macron and other officials, as well as later at UNESCO’s headquarters in Paris, the pontiff emphasized the dangers posed by unchecked scientific progress, including advances in artificial intelligence and the ongoing nuclear arms race.

The pope cautioned against what he described as a “paradise of machines,” warning that an overreliance on technology could erode essential human values. He framed these issues within broader existential questions about life and human rights in the modern world, urging reflection on what it means to remain truly human amid rapid change.

In the context of ongoing conflicts in Europe and the Middle East, Pope Leo reaffirmed the Vatican’s opposition to nuclear weapons and criticized the doctrine of nuclear deterrence. He characterized this policy as flawed, arguing it only exacerbates tensions and accelerates arms buildups. “Peace is not a balance of power; rather, it is built day by day through dialogue and justice,” he said.

The pope's visit marks the first official state visit by a pope to France in 18 years, drawing large crowds along his motorcade route despite unseasonably warm weather. Supporters waved French and Vatican flags, demonstrating a notable level of interest in the pontiff’s presence.

For President Macron, who is constitutionally barred from seeking a third term in the upcoming May elections, hosting Pope Leo represents a significant diplomatic moment. His predecessor, Pope Francis, declined formal state visits to France during his 12 years in office and notably chose not to attend the 2024 inauguration of the rebuilt Notre Dame Cathedral, an event closely associated with Macron’s administration.

The visit highlights ongoing engagement between the Vatican and France amid global uncertainties, with a focus on promoting peace, ethical reflection on technology, and cultural dialogue.