 With Jabotinsky’s death in 1940, Sternberg took on an increasingly visible role in leading the Revisionist movement.During these years he played a central role in coordinating efforts to aid Jewish refugees fleeing the Nazis migrate to Mandate Palestine.The British White Paper of 1939 had severely limited Jewish migration to Palestine, ensuring that only 75,000 Jews were officially granted permission to enter during the years of the War, despite the genocide taking place in Europe.