Danube Valley Railway (Baden-Württemberg) Inzigkofen was pushed through by the German general staff, for whom the Danube Valley Railway was seen as a strategic railway in case of another war with France. Since 1901, the Danube Valley Railway, together with the Höllentalbahn (Schwarzwald), form part of the pan-regional railway link from Ulm to Freiburg im Breisgau. The Danube Valley Railway runs alongside the Danube river and crosses it several times. From Immendingen the line runs across the Upper Danube Nature Park "(Naturpark Obere Donau)", brushing up against the southern edge of the Schwäbische Alb, all the while following the course of the Danube. Between
Nazi rule over the Danube River Germany and Italy had withdrawn and Britain and France were nonfunctioning members. "German quarters noted with satisfaction that this ends the existence of a valuable source of information for the Allies on the economic situation in Danubian territory," reported the "New York Times." Meanwhile, the upstream International Danube Commission was undergoing similar Nazi-imposed changes. The Reich had pulled out of the commission in November 1936, with an announcement that it was assuming "full sovereignty" over all German watercourses. After the Anschluss in 1938, Austria's membership also came to a close. Early in 1940, German sources were quoted in the "Times"