 According to Ilan Pappé, the Palestinian exodus can be described as ethnic cleansing.In his book "The Ethnic Cleansing of Palestine" Pappé analyses the causes of the exodus.He describes the aims the Yishuv (the Jewish community in Palestine) had, the way it prepared in the years before the war to be able to achieve these aims and the way in which a pragmatic ethnic cleansing policy was devised and implemented in 1947–1949.