Subtle strains may be emerging between the Vatican and Washington after Pope Leo XIV’s call to end the Iran conflict.

Relations between the Holy See and Washington appear to be entering a more strained phase after Pope Leo XIV publicly called for an immediate end to the conflict in Iran. The Pope described the war as unjust, emphasizing its devastating toll on civilians, and urged citizens around the world to pressure their governments to pursue peace.
In response, the administration of Donald Trump reportedly reacted strongly. According to sources cited by PBS and Yahoo, the Pentagon summoned the Vatican’s ambassador for what was described as a firm diplomatic exchange. U.S. officials reiterated that their military capabilities allow them to pursue strategic objectives independently, while signaling that they expect alignment from key global institutions—including the Vatican. Some reports also suggest that references to the era of Pope Boniface VIII were invoked by American officials, interpreted by observers as a pointed historical warning toward the Holy See.
Amid the escalating tension, the Pope has reportedly decided to cancel all planned visits to the United States through the end of the year. Although the White House later attempted to downplay the situation—stating that the meeting’s tone may not have been as severe as portrayed in the media—the perceived rift between the two sides continues to draw significant attention from the international community.