The 1947–1948 civil war in Mandatory Palestine was the first phase of the 1947–1949 Palestine war. It broke out after the General Assembly of the United Nations adopted a resolution on 29 November 1947 recommending the adoption of the Partition Plan for Palestine.
During the civil war, the Jewish and Arab communities of Palestine clashed while the British, who had the obligation to maintain order, organized their withdrawal and intervened only on an occasional basis.
When the British Mandate of Palestine expired on 14 May 1948, and with the Declaration of the Establishment of the State of Israel, the surrounding Arab states—Egypt, Transjordan, Iraq and Syria—invaded what had just ceased to be Mandatory Palestine, and immediately attacked Israeli forces and several Jewish settlements. The conflict thus escalated and became the 1948 Arab–Israeli War.