Pope Leo XIV Condemns Misuse of "Just War" Doctrine, Criticizes Arms Industry

Pope Leo XIV has issued a forceful critique of how the doctrine of "just war" has been exploited by political actors and defense contractors, marking a significant stance in his first encyclical, "Magnifica Humanitas"—Latin for "Marvelous Humanity."

The pontiff clarified that the theological concept of "just war" originated as a preventive principle designed to discourage armed conflict rather than serve as a justification for military action. He expressed concern that various parties have distorted this classical theory over time, weaponizing it to legitimize wars and regional hostilities.

The Vatican's pronouncement arrives amid escalating regional tensions, particularly following the ongoing US-Israeli military campaign against Iran. The statement also reflects growing international discord regarding proxy conflicts and mounting criticism within American and European circles about whether military-industrial interests are driving geopolitical instability.

The papal message has reignited friction between the Vatican and the Trump administration. In recent weeks, President Trump has launched unusually direct public criticism targeting Pope Leo XIV, specifically objecting to the Church's peace advocacy and its stance on immigration matters.

The Pope responded to these attacks by reaffirming the Church's fundamental mission. "The Church's purpose is to proclaim Scripture and promote peace," he stated, further noting: "Should anyone take issue with my preaching of the Gospel, I trust they will contemplate the wisdom contained in the Lord's teachings."

Vatican observers interpret the encyclical as a deliberate effort to reassert the Catholic Church's ethical and diplomatic influence in addressing global conflicts. This repositioning comes as international pressure intensifies for arms control measures and diplomatic resolutions to protracted regional disputes.