or during the war. Jews had begun emigrating from Germany in 1933 once the Nazis came to power, and from Austria from 1938, after the Anschluss. By the time war began in Europe, approximately 282,000 Jews had left Germany and 117,000 had left Austria. Nearly 300,000 Polish Jews fled to Soviet-occupied Poland and the interior of the Soviet Union between the start of the war in September 1939 and the German invasion of the Soviet Union in June 1941. After the German invasion of the Soviet Union, more than a million Soviet Jews fled eastward into the interior. The Soviet authorities imprisoned many refugees and deportees in the Gulag system in the Urals, Soviet Central Asia or Siberia, where they endured forced labor, extreme conditions, hunger and disease. Nonetheless, most managed to survive, despite the harsh circumstances. During the war, some Jews managed to escape to neutral European countries, such as Switzerland, which allowed in nearly 30,000, but turned away some 20,000 others; Spain, which permitted the entry of almost 30,000 Jewish refugees between 1939 and 1941, mostly from France, on their way to Portugal, but under German pressure allowed in fewer than 7,500 between 1942 and 1944; Portugal, which allowed thousands of Jews to enter so that they could continue their journeys from the port of Lisbon to the United States and South America; and Sweden, which allowed in some Norwegian Jews in 1940, and in October 1943, accepted almost the entire Danish Jewish community, rescued by the Danish resistance movement, which organized the escape of 7,000 Danish Jews and 700 of their non-Jewish relatives in small boats from Denmark to Sweden. About 18,000 Jews escaped by means of clandestine immigration to Palestine from central and eastern Europe between 1937 and 1944 on 62 voyages organized by the Mossad l'Aliyah Bet (Organization for Illegal Immigration), which was established by the Jewish leadership in Palestine in 1938. These voyages were conducted under dangerous conditions during the war, with hundreds of lives lost at sea. Immediate aftermath When the Second World War ended, the Jews who had survived the Nazi concentration camps, extermination camps, death marches, as well as the Jews who had survived by hiding in forests or hiding with rescuers, were almost all suffering from starvation, exhaustion and the abuse which they had endured, and tens of thousands of survivors continued to die from weakness, eating more than their