This introductory chapter provides an overview of how the Jews of post-war France, Belgium, and the Netherlands reconstructed their communities in the period between 1945 and the early 1960s. During these years, the Jews of the three countries attempted not only to recover from the devastation of their recent past but also to lay the foundations for their future. International and American Jewish relief and political organizations played a seminal role in these efforts. As relief organizations began to realize that the majority of the surviving Jews in France, Belgium, and the Netherlands intended to remain where they were, they took an interest in helping to reshape communal life. The goal, as it emerged in discussions beginning in 1947, was to implement a ‘Jewish Marshall Plan’ that would enable viable settlements, such as those in France, Belgium, and the Netherlands, to achieve stability and growth. Of the many external Jewish agencies that played a role in the efforts to reconstruct Jewish life in western Europe after 1945, three stand out: the American Jewish Joint Distribution Committee (known popularly in America as the JDC and in Europe as the Joint), the American Jewish Committee (AJC), and the World Jewish Congress (WJC).