The Arab rejection of the partition plan was not confined to a political act. The Arabs of the Mandate territory launched a large-scale terrorist campaign against their Jewish neighbors. This was followed by the invasion of Israel by five Arab armies who wanted to destroy Israel when it proclaimed its independence on 14 May 1948. The Jewish population defended itself against the Arabs' declared plans to "throw the Jews into the sea" but at a heavy cost of 1% of their total population and great damage to the new state.

 

The Arab population of the Mandate territory also suffered as a result of their refusal to accept the partition plan. Many headed their leaders' calls to flee, others left after being caught up in the fighting. The large numbers who stayed in Israel became full citizens, with equal rights. Nevertheless, the Palestinian refugee problem had been created. It was to be kept alive artificially by the Arab and Palestinian leadership till the present day, while the comparable Jewish refugee problem was resolved by the nascent state of Israel.

 

At war's end, Egypt had control of the Gaza Strip and Jordan annexed the West Bank. Neither saw fit to establish a Palestinian state in the territory they were to control for 19 years.

While UNGA Resolution 181 expressed the will of the international community for the establishment of a Jewish state, Israel still had to meet all the requirements of UN membership to be accepted into the organization. After Security Council approval, Israel took its seat as the 59th member of the United Nations on 11 May 1949.