Occupation of the Ruhr important harbour in Duisburg-Ruhrort, ending French occupation of the Ruhr region on 25 August 1925. According to Sally Marks, the occupation of the Ruhr "was profitable and caused neither the German hyperinflation, which began in 1922 and ballooned because of German responses to the Ruhr occupation, nor the franc's 1924 collapse, which arose from French financial practices and the evaporation of reparations". Marks suggests the profits, after Ruhr-Rhineland occupation costs, were nearly 900 million gold marks. Despite his disagreements with Britain, Poincaré desired to preserve the Anglo-French entente and thus moderated his aims to a degree. His major goal was
Ruhr Question by contrast, wanted the industrial area on the Rhine and Ruhr placed under common control of all four powers, as stipulated by the Berlin Declaration (1945). The three Western Allies disliked the idea of the Soviet Union reaping the benefits of the industrial area of the Rhine and the Ruhr. Basic differences of opinion led to tensions between the Soviet Union and Western Allies over various questions concerning the re-organization of Europe and the World. These tensions caused the Allied Control Council to break down, leading to the beginning of the Cold War. A decisive opponent of French annexation or