The Siegfried line but known as Westwall in Germany was constructive in the 1930s. It stretched 390 miles it featured around 18000 bunkers tank traps etc From August 1944-March 1945 saw some large battles fought on the Siegfried line such as the battle of hürtgen forest, battle of the bulge, The Americans lost around 24,000 soldiers fighting to take the Siegfried line
