Young Israeli Girl

The Jewish Legion, a group of battalions composed primarily of Zionist volunteers, assisted in the British conquest of Palestine. Arab opposition to the plan led to the 1920 Palestine riots and the formation of the Jewish organization known as the Haganah (meaning "The Defense" in Hebrew), from which the Irgun and Lehi paramilitary groups split off. In 1922, the League of Nations granted the United Kingdom a mandate over Palestine under terms similar to the Balfour Declaration. The population of the area at that time was predominantly Arab and Muslim, with Jews accounting for about 11% of the population.
The Third (1919–1923) and Fourth Aliyahs (1924–1929) brought an additional 100,000 Jews to Palestine. Finally, the rise of Nazism in the 1930s led to the Fifth Aliyah, with an influx of a quarter of a million Jews. This caused the Arab revolt of 1936–1939 and led the British to cap immigration with the White Paper of 1939. 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.
Independence and first years
After 1945, Britain found itself in fierce conflict with the Jewish community, as the Haganah joined Irgun and Lehi in armed struggle against British rule. At the same time, thousands of Jewish refugees from Europe sought shelter in Palestine and were turned away or rounded up and placed in detention camps by the British. In 1947, the British government withdrew from the Mandate of Palestine, stating it was unable to arrive at a solution acceptable to both Arabs and Jews. The newly created United Nations approved the Partition Plan for Palestine (United Nations General Assembly Resolution 181) on November 29, 1947, which sought to divide the country into two states—one Arab and one Jewish. Jerusalem was to be designated an international city—a corpus separatum—administered by the UN.