The Toblerone line is a 10 km long defensive line made of "dragon's teeth" fortifications built during the Second World War between Bassins and Prangins, in the Canton of Vaud, Switzerland. These lines of defensive blocks can be found all over Switzerland, though more commonly in border areas. Their purpose was to stop tank invasions. The 2,700 9-ton concrete blocks that make up the defences are similar to the shape of the Toblerone chocolate bar, which gave its name to the line. Since the line has been left to nature since its construction, it was decided to keep these concrete blocks and to make a hiking trail along their route.
The line was built along twelve fortresses, the most well-known being the "Villa Rose" in Gland, which was transformed into a museum and opened to the public in 2006.
The Toblerone line is a part of the Promenthouse defence line, which more or less follows the watercourse of the brooklets Promenthouse and Serine. First reconnaissance took place in 1936, in 1937 construction began by ramming railway tracks into the ground in order to reinforce the banks of the watercourse. In autumn 1939, first contracts for the construction of bunkers were made. The position was constantly upgraded throughout the war and eventually comprised a virtually continuous line of tank blocks.
The Maginot Line, named after the French Minister of War André Maginot, is a line of concrete fortifications, obstacles and weapon installations built by France in the 1930s to deter invasion by Nazi Germany and force them to move around the fortifications.
The Taunton Stop Line was a World War II defensive line in southwest England. It was designed "to stop an enemy's advance from the west and in particular a rapid advance supported by armoured fighting vehicles which may have broken through the forward defences."
The Siegfried Line, known in German as the Westwall, was a German defensive line built during the 1930s opposite the French Maginot Line. It stretched more than 630 km (390 mi) from Kleve on the border with the Netherlands, along the western border of Nazi Germany, to the town of Weil am Rhein on the border with Switzerland. The line featured more than 18,000 bunkers, tunnels and tank traps.
The Mannerheim Line was a defensive fortification line on the Karelian Isthmus built by Finland against the Soviet Union. While this was never an officially designated name, during the Winter War it became known as the Mannerheim Line, after Finnish Army's then commander-in-chief Field Marshal Baron Carl Gustaf Emil Mannerheim. The line was constructed in two phases: 1920–1924 and 1932–1939. By November 1939, when the Winter War began, the line was by no means complete.
Toblerone is a Swiss chocolate brand owned by Mondelez International. It is produced in Bern, Switzerland, was sometimes manufactured elsewhere in the past, and is planned to be made in Slovakia from the end of 2023. Toblerone is known for its distinctive shape, a series of joined triangular prisms and lettering engraved in the chocolate.
Dragon's teeth are square-pyramidal anti-tank obstacles of reinforced concrete first used during the Second World War to impede the movement of tanks and mechanised infantry. The idea was to slow down and channel tanks into killing zones where they could easily be disposed of by anti-tank weapons.
Ouvrage Coume is a lesser work of the Maginot Line. Located in the Fortified Sector of Boulay, the ouvrage consists of two infantry blocks, and was located between petits ouvrages Coume Annexe Nord and Coume Annexe Sud, facing Germany.
Ouvrage Bambesch is a lesser work of the Maginot Line. Located in the Fortified Sector of Faulquemont, the ouvrage consists of three infantry blocks, and is located between petits ouvrages Kerfent and Einseling, facing Germany. Completed in 1932, it is located in the Bois de Bambesch. On 20 June 1940 during the Battle of France, Bambesch was attacked by German forces, whose artillery battered the position, which could not be effectively supported by its neighbors, into surrender. Since 1973, Bambesch has been operated as a museum and is open to the public.
Ouvrage Sentzich is part of the Fortified Sector of Thionville of the Maginot Line. The petit ouvrage for infantry is located to the south of gros ouvrage Galgenberg, on the edge of the main road to Luxembourg near the village of Sentzich. Gros ouvrage Métrich is to the east. As a small work, it was not considered for use after World War II and was abandoned. It is secured and is not open to the public.
Ouvrage Rochonvillers is one of the largest of the Maginot Line fortifications. Located above the town of Rochonvillers in the French region of Lorraine, the gros ouvrage or large work was fully equipped and occupied in 1935 as part of the Fortified Sector of Thionville in the Moselle. It is located between the petit ouvrage d'Aumetz and the gros ouvrage Molvange, facing the border between Luxembourg and France with nine combat blocks. Rochonvillers saw little action during World War II, but due to its size it was repaired and retained in service after the war. During the Cold War it found a new use as a hardened military command centre, first for NATO and then for the French Army.
Ouvrage Molvange is a large work, or gros ouvrage of the Maginot Line. The fortification complex faces the France-Luxembourg border from a height near Entrange in the Moselle department. The complex, armed and occupied in 1935, is located on the heights of Entrange, at an altitude of about 400 metres (1,300 ft). Molvange is flanked by the even larger Ouvrage Rochonvillers to the west and smaller petit ouvrage Immerhof to the east, part of the Fortified Sector of Thionville. Molvange was not involved in significant combat during World War II, but due to its size it was repaired and retained in service after the war. During the Cold War, Molvange's underground barracks and former ammunition magazine became a hardened military command centre.
Ouvrage Immerhof, also known as Ouvrage Ferme-Immerhof, is one of the largest petit ouvrages of the Maginot Line of north-east, France. Located near the community of Hettange-Grande, it is 7 km north of Thionville between the gros ouvrages of Molvange and Soetrich, the closest ouvrage to the Luxembourg frontier. It was part of the Fortified Sector of Thionville, in the Fortified Region of Metz, the strongest portion of the Line. Apart from its function as a communication post between the neighbouring gros ouvrages, Immerhof also controlled the road and railway routes from Luxembourg, which pass in the immediate vicinity. In addition, Immerhof protected other Maginot works in the vicinity: the casemates of Kanfen, the infantry shelter of Stressling, the observation point and shelter of Hettange-Grande, and a number of nearby blockhouses constructed during the Phoney War.
Ouvrage Galgenberg forms a portion of the Fortified Sector of Thionville of the Maginot Line. It is situated in the Cattenom Forest, near the gros ouvrage Kobenbusch and petit ouvrage Oberheid. The ouvrage was tasked with controlling the Moselle Valley and as such was called the "Guardian of the Moselle." Galgenberg did not see significant action in 1940 or 1944. After a period of reserve duty in the 1950s and 1960s, it was deactivated. It is now a museum.
The Alpine Wall was an Italian system of fortifications along the 1,851 km (1,150 mi) of Italy's northern frontier. Built in the years leading up to World War II at the direction of Italian dictator Benito Mussolini, the defensive line faced France, Switzerland, Austria, and Yugoslavia. It was defended by the "Guardia alla Frontiera" (GaF), Italian special troops.
The fortified region of Belfort formed the first line of defense in the Séré de Rivières system of fortifications in the Belfort Gap. Located in northeastern France between Épinal and Besançon, the primary line was built in the late 19th century to deal with advances in artillery that had made older defensive systems obsolete.
Ouvrage Vélosnes is a gros ouvrage of the Maginot Line, located in the Fortified Sector of Montmédy between the towns of Othe and Vélosnes, facing Belgium. It possesses four combat blocks and one entrance block. It is located to the east of petit ouvrage Thonnelle. The position was sabotaged and abandoned by French forces that were ordered to retreat from the exposed position in June 1940 during the Battle of France. The ouvrage is abandoned and is administered as a nature preserve.
The Fortified Sector of Thionville was the French military organisation that in 1940 controlled the section of the Maginot Line immediately to the north of Thionville. The sector describes an arc of about 25 kilometres (16 mi), about halfway between the French border with Luxembourg and Thionville. The Thionville sector was the strongest of the Maginot Line sectors. It was surrounded but not seriously attacked in 1940 by German forces in the Battle of France, whose main objective was the city of Metz. Despite the withdrawal of the mobile forces that supported the fixed fortifications, the sector successfully fended off German assaults before the Second Armistice at Compiègne. The majority of the positions and their garrisons finally surrendered on 27 June 1940, the remainder on 2 July. Following the war, many positions were reactivated for use during the Cold War. Four locations are now preserved and open to the public.
The Swiss National Redoubt is a defensive plan developed by the Swiss government beginning in the 1880s to respond to foreign invasion. In the opening years of the Second World War the plan was expanded and refined to deal with a potential German invasion. The term "National Redoubt" primarily refers to the fortifications begun in the 1880s that secured the mountainous central part of Switzerland, providing a defended refuge for a retreating Swiss Army.
The Rupnik Line, was a line of World War II–era fortifications and weapons installations that Yugoslavia constructed along its terrestrial western and northern border. The construction of the line, named after General Leon Rupnik, was a safety measure taken in order to counter the construction of Alpine Wall, a line built by the bordering country Italy, as well as against the imposing danger of a German invasion following the Anschluss of Austria.
Russia has built numerous defense lines in Ukraine during its invasion.