After 1945 the United Kingdom became embroiled in an increasingly violent conflict with the Jews.[53] In 1947, the British government withdrew from commitment to the Mandate of Palestine, stating it was unable to arrive at a solution acceptable to both Arabs and Jews.[54] The newly created United Nations approved the UN Partition Plan (United Nations General Assembly Resolution 181) on November 29, 1947, dividing 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 to avoid conflict over its status.[55] The Jewish community accepted the plan,[56] but the Arab League and Arab Higher Committee rejected it.[57] On December 1, 1947 the Arab Higher Committee proclaimed a three-day strike, and Arab bands began attacking Jewish targets. Civil war began with the Jews initially on the defensive but gradually moving into offence. The Palestinian-Arab economy collapsed and 250, 000 Palestinian-Arabs fled or were expelled.[58]