Why did fighting begin in Palestine after the UN approved the partition plan?

Fighting erupted in Palestine following the United Nations approval of United Nations Resolution 181 on November 29, 1947, primarily because the plan was met with fundamentally opposing reactions from the region's communities.1

While the Jewish community viewed the resolution as a legal basis for the establishment of Israel, the Arab community rejected the proposal entirely. The partition plan sought to divide the British mandate of Palestine into separate Arab and Jewish states, with Jerusalem designated as a corpus separatum under an international regime.12

The rejection by the Arab population, coupled with the Jewish Agency's pursuit of a Jewish commonwealth, led to an immediate escalation of violence. Clashes began almost immediately after the vote, marked by incidents such as the November 30, 1947, ambush of a bus carrying Jewish passengers. As Great Britain prepared to withdraw its forces, the conflict intensified into the 1948 Arab-Israeli War, characterized by mutual hostility and the eventual declaration of Israeli independence.123