Fort Douaumont (French: Fort de Douaumont) was the largest and highest fort on the ring of 19 large defensive works which had protected the city of Verdun...

Fort Vaux (French: Fort de Vaux), in Vaux-Devant-Damloup, Meuse, France, was a polygonal fort forming part of the ring of 19 large defensive works intended...

Fort de Joux (French pronunciation: [fɔʁ də ʒu]) or Château de Joux (French pronunciation: [ʃato də ʒu]) is a castle, later transformed into a fort,...

fort was connected to other Belfort forts by the Chemins de fer du Territoire de Belfort strategic railroad. The fort was equipped with optical semaphores...

is now abandoned. The Fort de Boussois, also known as the Fort de Kilmaine, was built between 1881 and 1883 as part of the Séré de Rivières system of fortifications...

The Fort des Dunes, also known as Fort Leffrinckoucke and sometime Fort de l'Est, is located in the commune of Leffrinckoucke, France, about 6 kilometres...

northern France. This fort was built between 1877 and 1880. It is the work of the French general and military engineer Raymond Adolphe Sere de Rivieres. It was...

barrière de fer: l'architecture des forts du général Séré de Rivières (1872–1914) [The Iron Wall: The Architecture of the Forts of General Séré de Rivières...

The Fort de la Croix-de-Bretagne is a fortification in the vicinity of Briançon in the Dauphiné region of southeastern France. It was built as part of...

de la Salmagne was built to the northeast of Bersillies in 1884-1895 as part of the Séré de Rivières fortifications of Maubeuge. The trapezoidal fort...

The Fort du Replaton is a fortification of the Séré de Rivières system in Modane, France. The fort was built to provide artillery cover for the French...

belt of fortifications around Lyon, which also includes Fort de Vancia, Fort de Feyzin and Fort du Mont Verdun. Its history is linked to the Franco-Prussian...

The Fort de Seclin, also known as Fort Duhoux, is located near the commune of Seclin, France, about 9.5 kilometres (5.9 mi) south of Lille. Built from...

Fort du Mont Bart is located to the south of Montbéliard, France. It was built between November 1874 and July 1877 as part of the Séré de Rivières system...

The Fort de Vaujours, located in the commune of Courtry, Seine-Saint-Denis, near the town of Vaujours, is one of the forts built at the end of the 19th...

de Rivières system fortification. It retains its armament and is maintained as a museum. Located 6 kilometres (3.7 mi) northwest of Épinal, the Fort d'Uxegney...

telephone. Fort Souville is located south of Fort Douaumont and southwest of Fort Vaux. The fort was one of the first forts of the Séré de Rivières system...

forts around Lyon and more generally the Séré de Rivières fort system. This belt of forts included the forts of Bron, Vancia, Feyzin and Mont Verdun. It...

2.53167 Fort de Sucy was built following the Franco-Prussian War to defend Paris. Located to the southeast of Paris in Sucy-en-Brie, the fort was part...

The Fort du Bruissin is a fort in Francheville, France, near the city of Lyon. Built between 1878 and 1881, the fort is part of the Séré de Rivières system...

The Fort de la Pompelle, also known as Fort Herbillon, is one of a number of forts built around Reims after 1870 as part of a fortification belt in the...

Fort de Villey-le-Sec, also known as Fort Trévise, is a fortification of the 19th century, built as part of the Séré de Rivières system of fortifications...

The Fort de l'Infernet is a fortification complex near Briançon in the French Alps. It was built as part of the Séré de Rivières system of fortifications...

the road from Nice to the Col de Tende. This corridor represented the main invasion route to Nice from the north. Fort Suchet and Ouvrage Barbonnet operated...

beginning in 1907. It is an example of a Séré de Rivières system fortification. During World War II the fort surrendered to German forces and was then used...

in his book Histoire des fortifications de Grenoble de l'an 43 avant JC à 1900. The main square in the fort is now named after him; a plaque tells us...

of Belfort in northeastern France. This second ring of forts was built as part of the Séré de Rivières system and incorporated improvements to deal with...

The Fort de Montmorency was built following the Franco-Prussian War to defend Paris. Located to the north of Paris in Montmorency, the fort was part of...

that dominates the entire valley. The principal fort was built between 1884 and 1892 as part of the Séré de Rivières system. Construction was initially of...

Mont Agel. The ouvrage forms a backup to the main curtain of Alpine Line forts, and was not initially planned as part of the Alpine Line proper. Its intended...