When Raeder first raised the "Mediterranean plan" on 6 September 1940, Hitler mentioned that he was also considering an attack on the Soviet Union, to which Raeder did not object, and only at the second meeting of 26 September 1940 did Raeder first argue for giving primacy to the "Mediterranean plan" over an invasion of Soviet Russia.
[66] Raeder's change of mind about what operation to give primacy to was mostly due to signs of increased American support for Britain such as the
"destroyers-for-bases" deal of 2 September 1940, the Anglo-Free French attack on
Dakar and the defection of several French colonies in Africa from Vichy to the Gaullists.
[67] Raeder argued that it was quite possible that the United States might intervene in the near future, which led him to argue that Britain must be defeated in the winter of 1940/41 before America could enter the war, while the signs that Vichy was losing its control over the French colonial empire meant the Allied cause was growing stronger in resource-rich Africa.
[66] Raeder argued that it was now time to sign a peace treaty that would make Vichy France into a full ally, claiming that Vichy French forces could take the important British naval base at Freetown and that, by ceasing to treat France as a conquered country, Germany would be allowed to gain all of the resources of the French empire and fleet.[68]