Query: What was the Jewish population in Palestine by the end of World War II?
Context: With countries around the world turning away Jewish refugees fleeing the Holocaust, a clandestine movement known as Aliyah Bet was organized to bring Jews to Palestine. By the end of World War II, the Jewish population of Palestine had increased to 33% of the total population. On July 22, 1946, Irgun attacked the British administrative headquarters for Palestine, which was housed in the southern wing of the King David Hotel in Jerusalem.