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`The original Siegfried Line ((ドイツ語:Siegfriedstellung)) was a World War I line of defensive forts and tank defenses built by Germany in northern France during 1916–1917 as a section of the Hindenburg Line. In English the term "Siegfried Line" commonly refers to the "Westwall", the German term for a similar World War II-era defensive line built further east during the 1930s opposite the French Maginot Line. This line stretched more than and featured more than 18,000 bunkers, tunnels and tank traps. The network of defensive structures stretched from Kleve on the border with the Netherlands, along the western border of the old German Empire, to the town of Weil am Rhein on the border to Switzerland. It was planned beginning in 1936 and built between 1938 and 1940. == Origin of the name Westwall == The official name for the Second World War-era defensive line construction program that collectively came to be known as the "Westwall" in German and "Siegfried Line" in English changed several times during the late 1930s reflecting areas in progress: * Border Watch programme (pioneering programme) for the most advanced positions (1938) * Limes Programme (1938) * Aachen-Saar Programme (1939) * Geldern Emplacement between Brüggen and Kleve (1939–1940) * Western Air Defence Zone (1938) These programmes were all pushed forward with the highest priority, using every available resource. The origin of the name "Westwall" is unknown, but it appeared in popular use from the middle of 1939; there is a record of Hitler sending an Order of the Day to the soldiers and the workers at the "Westwall" on 20 May 1939. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Siegfried Line」の詳細全文を読む スポンサード リンク
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