...on the occasion of the dedication of a monument to St. Michael, in front of the Governatorate of Vatican City State, following up on a decision that had been taken by his predecessor. Both the Pope and his Emeritus were present. Vatican Radio has a summary: "Following a brief ceremony, Pope Francis addressed those present noting how St. Michael defends the People of God from its enemy par excellence, the devil. He said even if the devil attempts to disfigure the face of the Archangel and thus the face of humanity, St Michael wins, because God acts in him and is stronger."
The whole text of the Holy Father's beautiful short address in Italian is available here.