S1 (Rhine-Ruhr S-Bahn) Services ran via Düsseldorf Airport Terminal station from 24 May 1998 to 28 May 2000. Services were extended from Düsseldorf to Solingen on 13 December 2009, replacing part of the former line S 7 service. S1 (Rhine-Ruhr S-Bahn) Line S1 is a S-Bahn line on the Rhine-Ruhr network. It is operated by DB Regio. It runs from Dortmund west over Essen to Duisburg. From there it travels south to Düsseldorf and Hilden before continuing to Solingen. It is operated at 20 minute intervals, using coupled sets of class 422 four-car electrical multiple units. Line S 1 runs over lines built
Battle of the Ruhr 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. The targets included the Krupp armament works (Essen), the Nordstern synthetic-oil plant (Gelsenkirchen), and the Rheinmetal–Borsig plant in Düsseldorf. The latter was safely evacuated during the Battle of the Ruhr.Although not strictly part of the Ruhr area, the battle of the Ruhr included other cities such as Cologne which were within