Pope Francis told young people from the Associazione Rondine-Cittadella della Pace group Monday that "we must definitively remove war from the planet and the history of humanity".
"May you help bring down the highest walls, build bridges and sweep away uncrossable borders, the baggage of a world that is ending," he said.
The pope also said that new leaders with "a new mentality and without arrogance" were needed.
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