On 11 November 1938, following "Kristallnacht", Pius XI joined Western leaders in condemning the pogrom. In response, the Nazis organised mass demonstrations against Catholics and Jews in Munich, and the Bavarian Gauleiter Adolf Wagner declared before 5,000 protesters: "Every utterance the Pope makes in Rome is an incitement of the Jews throughout the world to agitate against Germany". On 21 November, in an address to the world's Catholics, the Pope rejected the Nazi claim of racial superiority, and insisted instead that there was only a single human race. Robert Ley, the Nazi Minister of Labour declared the following day in Vienna: "No compassion will be tolerated for the Jews. We deny the Pope's statement that there is but one human race. The Jews are parasites." Catholic leaders, including Cardinal Schuster of Milan, Cardinal van Roey in Belgium and Cardinal Verdier in Paris, backed the Pope's strong condemnation of "Kristallnacht".