In June the cabinet reassessed the war strategy, only to decide more firmly than ever on a fight to the last man. This strategy was officially affirmed at a brief Imperial Council meeting, at which, as was normal, the Emperor did not speak.
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.
Pfizer scientist Jasper H. Kane suggested using a deep-tank fermentation method for producing large quantities of pharmaceutical-grade penicillin. Large-scale production resulted from the development of a deep-tank fermentation plant by chemical engineer Margaret Hutchinson Rousseau. As a direct result of the war and the War Production Board, by June 1945, over 646 billion units per year were being produced.