Pope Leo has warned that the world is being ravaged by "tyrants," following US President Donald Trump's criticism of his stance on the Iran war. Speaking during a speech in Cameroon's largest city, Bamenda, he emphasized the need for peace and the use of religious language to justify war. The pope also condemned the exploitation of African resources and called for an end to the cycle of destabilization and death. He was greeted by thousands of supporters, many of whom had been kidnapped during the conflict.