Among his greetings at the end of his catechesis on Wednesday, the Holy Father greeted Polish pilgrims recalling how 1 September, marked the seventieth anniversary of the beginning of World War II, when Poland was invaded by the Nazis.
"Human tragedies and the absurdity of war remain in the memory of peoples", he said. "Let us ask God that the spirit of forgiveness, peace and reconciliation may pervade the hearts of humankind. Europe and the world today need a spirit of communion. Let us build it upon Christ and His Gospel, upon the foundation of charity and truth".