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.

In a conversation with ABC News, John shared a story from Pope Leo’s childhood, recalling a neighbor who predicted he would become the first American pope. The story went viral, resonating with many who saw it as a sign of destiny.

Now 69, Pope Leo brings decades of missionary work and Vatican leadership. Despite initial doubts, his family watched in awe as white smoke rose from the Sistine Chapel on May 8, 2025.

In a touching detail, John described playing Wordle and chatting about movies with his brother days before the conclave. “He’s just a regular person,” he said, emphasizing the pope’s humble nature and commitment to the poor.

The Vatican officially confirmed the election with the traditional Habemus Papam announcement. Pope Leo then delivered the Urbi et Orbi blessing, beginning his papacy with a call for peace, justice, and compassion.