History of the Ruhr and steel industries have declined drastically History of the Ruhr The actual boundaries of the Ruhr vary slightly depending on the source, but a good working definition is to define the Lippe and Ruhr as its northern and southern boundaries respectively, the Rhine as its western boundary, and the town of Hamm as the eastern limit. In the Middle Ages, local power was vested primarily in the counts ("Grafen") of Berg, Mark and Cleves. The left bank of the Rhine was held by the Archbishop of Cologne. The Hellweg was an important trade route crossing the region from Duisburg to
Battle of the Ruhr in place for the Ruhr, and Speer's Organisation Todt rapidly mobilized repairs, taking workers from the construction of the Atlantic Wall. The destruction of the Sorpe dam would have caused significantly more damage but since it was a stronger design less likely to be breached it was effectively a secondary target. Battle of the Ruhr The Battle of the Ruhr of 1943 was a 5-month British campaign of strategic bombing during the Second World War against the Nazi Germany Ruhr Area, which had coke plants, steelworks, and 10 synthetic oil plants. The campaign bombed 26 major Combined Bomber Offensive targets.