Following the war , Berihah ( " escape " ) , an organization of former partisans and ghetto fighters was primarily responsible for smuggling Jews from Eastern Europe through Poland . In 1946 Poland was the only Eastern Bloc country to allow free Jewish Aliyah to Mandate Palestine without visas or exit permits . By contrast , Stalin forcibly brought Soviet Jews back to USSR , as agreed by the Allies during the Yalta Conference . The refugees were sent to the Italian ports from which they traveled to Mandatory Palestine . More than 4,500 survivors left the French port of Sète aboard '' President Warfield '' ( renamed '' Exodus '' ) . The British turned them back to France from Haifa , and forced them ashore in Hamburg . Despite British efforts to curb the illegal immigration , during the 14 years of its operation , 110,000 Jews immigrated to Palestine . In 1945 reports of the Holocaust with its 6 million Jewish killed , caused many Jews in Palestine to turn openly against the British Mandate , and illegal immigration escalated rapidly as many Holocaust survivors joined the Aliyah
Yalta Conference
Yalta Conference
Aliyah