This marks a shift in a pope's stance on the war in Ukraine as his predecessor, Pope Francis, was more ambiguous in his statements toward Russian aggression.
Ukraine's leader hopes to use Pope Leo's installation ceremony as a diplomatic opportunity, following his successful meeting with President Trump during Pope Francis's funeral.
Earlier, Leo XIV said the world was experiencing a “third world war in pieces" and that he carried “the sufferings of the beloved Ukrainian people” in his heart.