On 2 April 1947, the United Kingdom requested that the question of Palestine be handled by the [UN] General Assembly... The majority report of UNSCOP proposed "an independent Arab State, an independent Jewish State, and the City of Jerusalem", the last to be under "an International Trusteeship System". On 29 November 1947, in Resolution 181 (II), the General Assembly adopted the majority report of UNSCOP, but with slight modifications. The Plan also called for the British to allow "substantial" Jewish migration by 1 February 1948... Neither Britain nor the UN Security Council took any action to implement the recommendation made by the resolution and Britain continued detaining Jews attempting to enter Palestine.
The General Assembly's vote caused joy in the Jewish community and anger in the Arab community. Violence broke out between the sides, escalating into civil war... Up to 100,000 Arabs, from the urban upper and middle classes in Haifa, Jaffa and Jerusalem, or Jewish-dominated areas, evacuated abroad or to Arab centres eastwards. This situation caused the US to withdraw their support for the Partition plan, thus encouraging the Arab League to believe that the Palestinian Arabs, reinforced by the Arab Liberation Army, could put an end to the plan for partition. The British, on the other hand, decided on 7 February 1948 to support the annexation of the Arab part of Palestine...
Every Jewish man and woman in the country had to receive military training. Thanks to funds raised by Golda Meir from sympathisers in the United States, and Stalin's decision to support the Zionist cause, the Jewish representatives of Palestine were able to purchase important arms in Eastern Europe.
Ben-Gurion gave Yigael Yadin the responsibility to plan for the announced intervention of the Arab states. The result of his analysis was Plan Dalet, in which Haganah passed from the defensive to the offensive. The plan sought to establish Jewish territorial continuity by conquering mixed zones. Tiberias, Haifa, Safed, Beisan, Jaffa and Acre fell, resulting in the flight of more than 250,000 Palestinian Arabs. The situation was one of the catalysts for the intervention of neighbouring Arab states.