Rademacher recommended on 3 June 1940 that Madagascar should be made available as a destination for the Jews of Europe. With Adolf Hitler's approval, Adolf Eichmann released a memorandum on 15 August 1940 calling for the resettlement of a million Jews per year for four years, with the island being governed as a police state under the SS. They assumed that many Jews would succumb to its harsh conditions should the plan be implemented.[4] The plan was not viable due to the British naval blockade.