Just days after his election, Pope Leo XIV has made a striking debut, using his first public address to call for peace in Ukraine and Gaza, justice for the oppressed, and unity within the Catholic Church. Speaking from St. Peter’s Basilica, the first American pope urged global powers to reject war, echoing Pope Francis’ warning of a “third world war in pieces.” He called for an end to violence in Gaza, support for civilians, and the release of hostages and prisoners of war.

Leo XIV, born Robert Francis Prevost in Chicago, also sparked attention for past tweets criticizing U.S. political figures like JD Vance over immigration and Christian values. His brother, John Prevost, said the pope is unlikely to stay silent on such issues.