(COMBO) This combination of file pictures created on April 13, 2026 shows Pope Leo XIV speaking during the doxology at the Patriarchal Church of Saint George, in Istanbul on November 29, 2025 (L) and US President Donald Trump speaking during a meeting with German Chancellor Friedrich Merz in the Oval Office of the White House in Washington, DC on March 3, 2026 (R). Pope Leo XIV said on April 13, 2026 that he had "a moral duty" to speak out against war and didn't "fear" US President Donald Trump after the US leader criticised his calls for an end to the conflict in the Middle East. Before taking off from Rome headed to Algiers for a papal visit, the pontiff came under fire from Trump, who railed against Leo's recent comments calling for peace with the Middle East grappling with the war triggered by a joint Israel-US attack on Iran in late February. (Photo by Ozan KOSE and ANDREW CABALLERO-REYNOLDS / AFP via Getty Images)