Due to the Jewish insurgency, bad publicity over the restriction of Jewish immigrants to Palestine, non-acceptance of a partitioned state (as suggested by the United Nations) amongst Arab leaders, and the cost of keeping 100,000 troops in Palestine the British Government referred the matter to the United Nations. In September 1947, the British decided to terminate the Mandate. In November 1947, the United Nations General Assembly passed a resolution approving the United Nations Partition Plan for Palestine. While the Jewish Agency under Ben-Gurion accepted, the Arabs rejected the plan and the 1947–1948 civil war in Mandatory Palestine broke out. Ben-Gurion's strategy was for the Haganah to hold on to every position with no retreat or surrender and then launch an offensive when British forces had evacuated to such an extent that there would be no more danger of British intervention. This strategy was successful, and by May 1948 Jewish forces were winning the civil war. On 14 May 1948, a few hours before the British Mandate officially terminated, Ben-Gurion declared Israeli independence in a ceremony in Tel Aviv. A few hours later, the State of Israel officially came into being when the British Mandate terminated on 15 May. The 1948 Arab–Israeli War began immediately afterwards as numerous Arab nations then invaded Israel.