"’Every person in authority will have to answer to God for the way they exercise their power,’ including the ‘the power to start or end a war,’ said the meditations read aloud for Leo's first Way of the Cross as pope.” https://www.ncronline.org/vatican/vatican-news/pope-leos-way-cross-says-leaders-will-have-answer-god-starting-war
Pope Leo's Way of the Cross says leaders 'will have to answer to God' for starting war

War was among the many forms of suffering mentioned in Leo's first Good Friday procession as pope.

National Catholic Reporter