British Mandate of Palestine
During the Second World War, the Yishuv joined the British to fight the Axis Powers. For the time being they moved their resistance toward the 1939 White Paper to second priority.  After the war the British government intended to keep themselves to the 1939 White Paper. This meant that only a small number of Jews were allowed to migrate to Palestine. However, there were a lot of Holocaust survivors stuck in Europe who wanted to come to Palestine. When the United States spoke out their support to give a 100.000 Jews permission to go to Palestine,  the British were in a difficult position. For various reasons, they needed to stay friendly with the United States. On the other hand, giving 100.000 immigration certificates would most likely lead to Arab violence in Palestine. Now it was the Jews who caused most unrest in Palestine. In their anger over the British refusal to let more holocaust survivors enter Palestine they committed terrorist attacks.