section_path: History/British Mandate for Palestine
section_name: British Mandate for Palestine
paragraph_text: British Mandate for Palestine
  
  Chaim Weizmann 's efforts to garner British support for the Zionist movement eventually secured the Balfour Declaration of 1917, stating Britain's support for the creation of a Jewish " national home " in Palestine. Weizmann's interpretation of the declaration was that negotiations on the future of the country were to happen directly between Britain and the Jews, excluding Arabs. Jewish-Arab relations in Palestine deteriorated dramatically in the following years.
  
  In 1918, the Jewish Legion, primarily Zionist volunteers, assisted in the British conquest of Palestine. In 1920, the territory was divided between Britain and France under the mandate system, and the British-administered area (including modern Israel) was named Mandatory Palestine. Arab opposition to British rule and Jewish immigration led to the 1920 Palestine riots and the formation of a Jewish militia known as the Haganah as an outgrowth of Hashomer, from which the Irgun and Lehi paramilitaries later split. In 1922, the League of Nations granted Britain the Mandate for Palestine under terms which included the Balfour Declaration with its promise to the Jews and with similar provisions regarding the Arab Palestinians. The population of the area was predominantly Arab and Muslim, with Jews accounting for about 11% and Arab Christians about 9.5% of the population.
  
  The Third (1919–1923) and Fourth Aliyahs (1924–1929) brought an additional 100,000 Jews to Palestine. The rise of Nazism and the increasing persecution of Jews in 1930s Europe led to the Fifth Aliyah, with an influx of a quarter of a million Jews. This was a major cause of the Arab revolt of 1936–39, which was suppressed by British security forces and Zionist militias. Several hundred British security personnel and Jews were killed; 5,032 Arabs were killed, 14,760 wounded, and 12,622 detained. An estimated ten percent of the adult male Palestinian Arab population was killed, wounded, imprisoned, or exiled.
  
  The British introduced restrictions on Jewish immigration to Palestine 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 organised to bring Jews to Palestine. By the end of World War II, 31% of the population of Palestine was Jewish. The UK found itself facing a Jewish insurgency over immigration restrictions and continued conflict with the Arab community over limit levels. The Haganah joined Irgun and Lehi in an armed struggle against British rule. The Haganah attempted to bring tens of thousands of Jewish refugees and Holocaust survivors to Palestine by ship. Most of the ships were intercepted by the Royal Navy and the refugees placed in detention camps in Atlit and Cyprus.
  
  On 22 July 1946, Irgun bombed the British administrative headquarters for Palestine, killing 91. The attack was a response to Operation Agatha (a series of raids, including one on the Jewish Agency, by the British) and was the deadliest directed at the British during the Mandate era. The Jewish insurgency continued throughout 1946 and 1947 despite concerted efforts by the British military and Palestine Police Force to suppress it. British efforts to mediate with Jewish and Arab representatives also failed as the Jews were unwilling to accept any solution that did not involve a Jewish state and suggested a partition of Palestine into Jewish and Arab states, while the Arabs were adamant that a Jewish state in any part of Palestine was unacceptable and that the only solution was a unified Palestine under Arab rule. In February 1947, the British referred the Palestine issue to the newly formed United Nations. On 15 May 1947, the UN General Assembly resolved that a Special Committee be created "to prepare... a report on the question of Palestine". The Report of the Committee proposed a plan to replace the British Mandate with "an independent Arab State, an independent Jewish State, and the City of Jerusalem the last to be under an International Trusteeship System". Meanwhile, the Jewish insurgency continued and peaked in July 1947, with a series of widespread guerrilla raids culminating in the Sergeants affair, in which the Irgun took two British sergeants hostage as attempted leverage against the planned execution of three Irgun operatives. After the executions were carried out, the Irgun killed the two British soldiers, hanged their bodies from trees, and left a booby trap at the scene which injured a British soldier. The incident caused widespread outrage in the UK. In September 1947, the British cabinet decided to evacuate Palestine as the Mandate was no longer tenable.
  
  On 29 November 1947, the General Assembly adopted Resolution 181 (II). The plan attached to the resolution was essentially that proposed in the report of 3 September. The Jewish Agency, the recognised representative of the Jewish community, accepted the plan, which assigned 55–56% of Mandatory Palestine to the Jews. At the time, the Jews were about a third of the population and owned around 6–7% of the land. Arabs constituted the majority and owned about 20% of the land, with the remainder held by the Mandate authorities or foreign landowners. The Arab League and Arab Higher Committee of Palestine rejected it on the basis that the partition plan privileged European interests over those of the Palestinians, and indicated that they would reject any other plan of partition. On 1 December 1947, the Arab Higher Committee proclaimed a three-day strike, and riots broke out in Jerusalem. The situation spiraled into a civil war. Colonial Secretary Arthur Creech Jones announced that the British Mandate would end on 15 May 1948, at which point the British would evacuate. As Arab militias and gangs attacked Jewish areas, they were faced mainly by the Haganah as well as the smaller Irgun and Lehi. In April 1948, the Haganah moved onto the offensive.