As a result of the massive destruction that attacked the Jews during the Holocaust, it became more noticeable the importance of a Jewish homeland. The Jews who tried to flee Nazi Germany were often turned back due to immigration limitations at the borders of every country, including the United States, Britain and Palestine. So, there had to be a decision made on where this throng of Jews were going to be brought to avoid over population. In the idea of bringing them back to Israel, there was also talk of Churchill having the Jewish refugees to be brought to Uganda but, the Zionist organizations were firmly opposed to settling for any state outside of Palestine, fearing that accepting such a plan would threaten their efforts to increase Jewish emigration to Israel. In 1948, the Jewish people’s resistance paid off and they finally achieved their dream of over 2,000 years, regaining control of their promised land and establishing their national homeland within its borders.

Post WWII and Problems with Jewish Immigration

http://unitedwithisrael.org/why-only-israel-can-be-the-jewish-homeland/
https://history.state.gov/milestones/1945-1952/creation-israel