The immigration restrictions of the British White Paper of 1939 meant that such a plan could not be put into large scale effect until the Israeli Declaration of Independence in May 1948.
British White Paper of 1939的移民限制意味着这样的计划不可能发挥大规模的作用，但直到1948年5月的“以色列独立宣言”后，它才发挥了巨大的作用。