In Jewish history, Jews have experienced numerous mass expulsions or ostracism by various local authorities and have sought refuge in other countries.
The Land of Israel was always regarded by Jews as the Jewish homeland, though throughout most of Jewish history they were barred from the land. After its establishment in 1948, the State of Israel adopted the 1950 Law of Return restoring Israel as the Jewish homeland and making it the place of refuge for Jewish refugees at the time and into the future. This law was intended to encourage Jews to return to their homeland in Israel.
After 1970 the Jackson–Vanik amendment accorded those Jewish emigrants from the Soviet bloc countries who desired to enter the United States refugee status combined with federal assistance in the initial stages of their resettlement.
Then UNHCR announced in February 1957 and in July 1967, that these Jews who had fled from Arab countries "may be considered prima facie within the mandate of this office," so according them in international law, as bona fide refugees.