Stresemann was not willing to conclude a similar treaty with Poland: "There will be no Locarno of the east" he said. Moreover he never excluded the use of force to regain the eastern territories of Germany which had come under Polish control as a consequence of the Treaty of Versailles. The reason were atrocities against the German minority in the former German territories committed by or tolerated by the Polish government, see: and Hermann Rauschning. In the session of the League of Nations on 15 December 1928 in Lugano Stresemann formulated a furious charge against Poland because of these crimes which were well known to the League of Nations. The chairman Aristide Briand, French foreign minister, concluded the session after this speech with the words: "The League of Nations must never break the sacred support of the minority-rights."