Pope Leo XIV, the first American leader of the Catholic Church, previously known as Robert Francis Prevost, gave his first Sunday blessing as pope and called for peace in the Ukraine-Russia conflict and a ceasefire in Gaza.

The president and the pontiff's Trump-loving sibling Louis Prevost had a "great meeting," said the White House.

I, too, address the world’s great powers by repeating the ever-present call ‘never again war,’” Leo said from St. Peter’s Basilica.