Read this: Prime Minister Josip Broz Tito met with the president of the Bishops' Conference of Yugoslavia, Aloysius Stepinac on 4 June 1945, two days after his release from imprisonment. The two could not reach an agreement on the state of the Catholic Church. Under Stepinac's leadership, the bishops' conference released a letter condemning alleged Partisan war crimes in September, 1945. The following year Stepinac was arrested and put on trial. In October 1946, in its first special session for 75 years, the Vatican excommunicated Tito and the Yugoslav government for sentencing Stepinac to 16 years in prison on charges of assisting Ustaše terror and of supporting forced conversions of Serbs to Catholicism. Stepinac received preferential treatment in recognition of his status and the sentence was soon shortened and reduced to house-arrest, with the option of emigration open to the archbishop. At the conclusion of the "Informbiro period", reforms rendered Yugoslavia considerably more religiously liberal than the Eastern Bloc states.
Now answer this question, if there is an answer (If it cannot be answered, return "unanswerable"): Under whose leadership did the bishops' conference release a letter condemning alleged Partisan war crimes?
Stepinac