Answer: To ensure safety for the Jews after the Holocaust
Explanation: A large number of Jews began to move to Palestine by the end of the 19th century. Until the establishment of the state of Israel in 1948, several million Jews have already settled in Palestine. Even before the formation of the State of Israel there were conflicts between the Arabs and the Jews. The question arises, why did the Jews choose Palestine as a place to form a state? According to their historical sources, they were there for centuries before exile after the rebellion against Rome about 70 AC.
Since around two millennia have been displaced around the world, it is known that in Europe they have seen countless massacres during the Middle Ages, and have been blamed for many of the troubles that have hit Europe.
The desire to form a Jewish state existed even before, and a crucial turning point was the formation of a Zionist movement that advocated for it, by political means. Therefore, the goal of the Jews and the Zionist movement was to create their own state in order to ensure the safety of the Jewish people.
There were several attempts and political activities, but it became realistic after the Holocaust during WWII when some six million Jews were killed in Nazi concentration camps. After the WWII, the UN declaration allowed Jews to form their country on the territory of Palestine.