Ettlingen Line

Several months after the loss of the Bühl-Stollhofen Line, work began on the Ettlingen Line on the orders of the commander of the Rhine Army, George Louis of Brunswick-Lüneburg.

The line was reinforced during the War of the Polish Succession (1733–1738) by the introduction of watercourses that could be impounded, but in 1734 French troops broke through them and they were subsequently destroyed, but then rebuilt in 1735.

The line, which flanks from the Malscher Landgraben, lies between the Black Forest and the Rhine meadows south of where the city of Karlsruhe is today.

Remains of the fortified line with their breastworks and a redoubt may still be seen southwest of Karlsruhe near a heath settlement, running for a distance of around 500 metres in the forest of Hardtwald.

Since July 2010 the line in Karlsruhe has been marked by an information board; another one has been erected in Rheinstetten on Pirschweg.