To establish or maintain the position of the Catholic Church, Pius XI concluded a record number of concordats, including the "Reichskonkordat" with Nazi Germany, whose betrayals of which he condemned four years later in the encyclical "Mit brennender Sorge" ("With Burning Concern"). During his pontificate, the longstanding hostility with the Italian government over the status of the papacy and the Church in Italy was successfully resolved in the Lateran Treaty of 1929. He was unable to stop the persecution of the Church and the killing of clergy in Mexico, Spain and the Soviet Union. He canonized important saints, including Thomas More, Peter Canisius, Bernadette of Lourdes and Don Bosco. He beatified and canonized Thérèse de Lisieux, for whom he held special reverence, and gave equivalent canonization to Albertus Magnus, naming him a Doctor of the Church due to the spiritual power of his writings. He took a strong interest in fostering the participation of lay people throughout the Catholic Church, especially in the Catholic Action movement. The end of his pontificate was dominated by speaking out against Hitler and Mussolini and defending the Catholic Church from intrusions into Catholic life and education.