Pope Francis, is welcomed by Polish President Andrzej Duda, center, and his wife Agata Kornhauser-Duda as he arrives at the royal Wawel Castle in Krakow, Poland, Wednesday, July 27, 2016. The world is at war, but it is not a war of religions, Pope Francis said Wednesday as he traveled to Poland on his first visit to Central and Eastern Europe in the shadow of the slaying of a priest in France. (Filippo Monteforte/Pool Photo via AP)