In late fall 1940, as World War II raged in Europe and despite the parlous situation of the Jews in British-Mandate Palestine, their leader David Ben-Gurion spent three and a half months in the United States, returning again in November 1941 for a far longer stay of more than nine months. The wartime route from Palestine to the U.S. was lengthy and dangerous, but Ben-Gurion keenly understood not only the prime importance of relations with America but also the fact that the American Jewish community had now become the center of world Jewry.