Luther broached the subject with Foreign Minister Ribbentrop, who was simultaneously developing a similar scheme. By 18 June, Hitler and Ribbentrop spoke of the Plan with Italian leader Benito Mussolini as a possibility that could be pursued after the defeat of France. Once he learned of the plan, SS-"Obergruppenführer" Reinhard Heydrich, chief of the Reich Security Main Office (RSHA), insisted that Ribbentrop relinquish any future responsibility for the Plan to that office. As Heydrich had been appointed by Göring in January 1939 to oversee Jewish evacuation from German-occupied territory, the Jewish question was hence under his purview. Adolf Eichmann, head of the RSHA Sub-Department IV-B4, which dealt with Jewish affairs and evacuation, soon became involved. On 15 August, he released a memorandum titled "Reichssicherheitshauptamt: Madagaskar Projekt" (Reich Security Main Office: Madagascar Project), calling for the resettlement of a million Jews per year for four years and abandoning the idea of retaining any Jews in Europe. The RSHA, he emphasised, would control all aspects of the program. While Rademacher called for the colony to be under German control but self-governing under Jewish administration, Eichmann made it plain that he intended for the SS to control and oversee every aspect of life on the island, which they would govern as a police state. France surrendered on 22 June.