After World War II, the British economy was in a shaky state and could not afford to continue keeping 100,000 soldiers in Palestine. Besides, the simple idea of “colonialism” had lost prestige in the world. Forced instead of willing, the British decided to return the Mandate they had received from the League of Nations to its successor, the United Nations. Moreover, the action of the underground Jewish movements (such as the attack on the Acco jail or the execution of the officers in Netanya) shook and humiliated Great Britain and reflected on the headlines of their newspapers. The British reaction towards the Exodus is another example of the British legitimacy crisis in the world public opinion. In his book “100 Questions and Answers about the Palestinian-Israeli Conflict” journalist Pedro Brieger affirms: “This fostered the Jewish revolt against the British, now with the support of the United States, one of the emerging powers together with the Soviet Union”. Certainly, the U.S. government did not support the Jewish revolt against the British. This information is not correct. The support of the U.S. to Zionist activities consisted in tolerating Jewish leaders such as Golda Meir to carry out fund-raising campaigns among the U.S. resident Jewish communities. The cause of the British leaving of Palestine can be summarized as follows: 1) They were economically bankrupt after World War II; 2) When the genocide of the Jews in the Shoa became known, there was an increase of sympathy towards the lack of a national Jewish home; 3) The loss of the prestige of “colonialism”. However, the British did not want to withdraw; they were convinced that the Jews would be subject to death in the hands of the Arabs and would ask for the aid of the British.