Memoranda written in 1930s Imperial Japan proposed settling Jewish refugees escaping Nazi-occupied Europe in Japanese-controlled territory. As interpreted by Marvin Tokayer and Swartz (who used the term "Fugu Plan", "河豚計画", that was used by the Japanese to describe this plan), they proposed that large numbers of Jewish refugees should be encouraged to settle in Manchukuo or Japan-occupied Shanghai, thus gaining the benefit of the supposed economic prowess of the Jews and also convincing the United States, and specifically American Jewry, to grant political favor and economic investment into Japan. The idea was partly based on the acceptance of "The Protocols of the Elders of Zion" as being a genuine document by at least part of the Japanese leadership.