Pope Leo XIV has taken over the Vatican’s official social media handles. The Vatican posted a first Instagram post Tuesday repeating the first words Leo said to the world as pope: “Peace be with you all!

The pope's inauguration mass at St Peter's Square on Sunday, May 18 will be a far grander affair -- his first public mass as pope, during which he will preside before thousands of worshippers and world leaders.

Pope Leo XIV made his debut on the balcony of St. Peter's Basilica, leading the Regina Coeli prayer. He also spoke clearly about his stance on the war in Ukraine. "I too appeal to the powerful of the world by repeating these ever-relevant words: never again war!