Pope Francis set off a diplomatic storm yesterday when he referred to the genocide of the Armenians at a service in St. Peter’s Basilica this weekend. The Turkish Foreign Ministry denounced the remarks as baseless and unfair, and summoned the Vatican’s Turkish representative to appear for a tongue lashing. By the standards of Vatican diplomacy, this was an explosion. Conscious of the vulnerability of Christian minorities around the world, popes are usually circumspect when touching on controversial diplomatic topics. Francis’ words will certainly provoke a harsh response from Turkey where, despite very slow and painful progress at coming to grips with the legacy of violence and persecution that shaped modern Turkey, it remains illegal to refer to the Armenian massacres as a genocide. . . . Pope Francis, who is well aware that Christians across much of Africa live in the presence of something that is beginning to look like a fully fledged if relatively low-intensity religious war, seems to have decided that a strategy of silent conciliation is no longer adequate given the rising threat. His denunciation of a century-old genocide isn't just about ancient history. It is an intervention in contemporary politics, and a warning that the danger of religious conflict continues to grow.