Maginot Line
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The Maginot Line (; ), named after the French Minister of War André Maginot, is a line of concrete
fortification A fortification (also called a fort, fortress, fastness, or stronghold) is a military construction designed for the defense of territories in warfare, and is used to establish rule in a region during peacetime. The term is derived from Lati ...
s, obstacles and weapon installations built by
France France, officially the French Republic, is a country located primarily in Western Europe. Overseas France, Its overseas regions and territories include French Guiana in South America, Saint Pierre and Miquelon in the Atlantic Ocean#North Atlan ...
in the 1930s to deter invasion by
Nazi Germany Nazi Germany, officially known as the German Reich and later the Greater German Reich, was the German Reich, German state between 1933 and 1945, when Adolf Hitler and the Nazi Party controlled the country, transforming it into a Totalit ...
and force them to move around the fortifications. It was impervious to most forms of attack; consequently, the Germans invaded through the
Low Countries The Low Countries (; ), historically also known as the Netherlands (), is a coastal lowland region in Northwestern Europe forming the lower Drainage basin, basin of the Rhine–Meuse–Scheldt delta and consisting today of the three modern "Bene ...
in 1940, passing it to the north. The line, which was supposed to be fully extended further towards the west to avoid such an occurrence, was finally scaled back in response to demands from
Belgium Belgium, officially the Kingdom of Belgium, is a country in Northwestern Europe. Situated in a coastal lowland region known as the Low Countries, it is bordered by the Netherlands to the north, Germany to the east, Luxembourg to the southeas ...
. Indeed, Belgium feared it would be sacrificed in the event of another German invasion. The line has since become a metaphor for expensive efforts that offer a false sense of security. Constructed on the French side of its borders with
Italy Italy, officially the Italian Republic, is a country in Southern Europe, Southern and Western Europe, Western Europe. It consists of Italian Peninsula, a peninsula that extends into the Mediterranean Sea, with the Alps on its northern land b ...
,
Switzerland Switzerland, officially the Swiss Confederation, is a landlocked country located in west-central Europe. It is bordered by Italy to the south, France to the west, Germany to the north, and Austria and Liechtenstein to the east. Switzerland ...
,
Germany Germany, officially the Federal Republic of Germany, is a country in Central Europe. It lies between the Baltic Sea and the North Sea to the north and the Alps to the south. Its sixteen States of Germany, constituent states have a total popu ...
,
Luxembourg Luxembourg, officially the Grand Duchy of Luxembourg, is a landlocked country in Western Europe. It is bordered by Belgium to the west and north, Germany to the east, and France on the south. Its capital and most populous city, Luxembour ...
and
Belgium Belgium, officially the Kingdom of Belgium, is a country in Northwestern Europe. Situated in a coastal lowland region known as the Low Countries, it is bordered by the Netherlands to the north, Germany to the east, Luxembourg to the southeas ...
, the line did not extend to the
English Channel The English Channel, also known as the Channel, is an arm of the Atlantic Ocean that separates Southern England from northern France. It links to the southern part of the North Sea by the Strait of Dover at its northeastern end. It is the busi ...
. French strategy, therefore, envisioned a move into Belgium to counter a German assault. Based on France's experience with
trench warfare Trench warfare is a type of land warfare using occupied lines largely comprising Trench#Military engineering, military trenches, in which combatants are well-protected from the enemy's small arms fire and are substantially sheltered from a ...
during
World War I World War I or the First World War (28 July 1914 – 11 November 1918), also known as the Great War, was a World war, global conflict between two coalitions: the Allies of World War I, Allies (or Entente) and the Central Powers. Fighting to ...
, the massive Maginot Line was built in the run-up to
World War II World War II or the Second World War (1 September 1939 – 2 September 1945) was a World war, global conflict between two coalitions: the Allies of World War II, Allies and the Axis powers. World War II by country, Nearly all of the wo ...
, after the Locarno Conference in 1925 gave rise to a fanciful and optimistic "Locarno spirit". French military experts believed the line would deter German aggression because it would slow an invasion force long enough for French forces to mobilise and counterattack. The Maginot Line was invulnerable to aerial bombings and tank fire; it used underground railways as a backup. It also had state-of-the-art living conditions for garrisoned troops, supplying air conditioning and eating areas for their comfort. French and British officers had anticipated the geographical limits of the Maginot Line; when
Germany Germany, officially the Federal Republic of Germany, is a country in Central Europe. It lies between the Baltic Sea and the North Sea to the north and the Alps to the south. Its sixteen States of Germany, constituent states have a total popu ...
invaded the
Netherlands , Terminology of the Low Countries, informally Holland, is a country in Northwestern Europe, with Caribbean Netherlands, overseas territories in the Caribbean. It is the largest of the four constituent countries of the Kingdom of the Nether ...
and
Belgium Belgium, officially the Kingdom of Belgium, is a country in Northwestern Europe. Situated in a coastal lowland region known as the Low Countries, it is bordered by the Netherlands to the north, Germany to the east, Luxembourg to the southeas ...
, they carried out plans to form an aggressive front that cut across Belgium and connected to the Maginot Line. The French line was weak near the
Ardennes The Ardennes ( ; ; ; ; ), also known as the Ardennes Forest or Forest of Ardennes, is a region of extensive forests, rough terrain, rolling hills and ridges primarily in Belgium and Luxembourg, extending into Germany and France. Geological ...
. General
Maurice Gamelin Maurice Gustave Gamelin (; 20 September 1872 – 18 April 1958) was a French general. He is remembered for his disastrous command (until 17 May 1940) of the French military during the Battle of France in World War II and his steadfast defence of ...
, when drafting the
Dyle Plan Dyle may refer to: * Dyle (river), a river in central Belgium, tributary of the Rupel * Dyle, Poland, a village * Dyle plan, a French plan for defending against German invasion *Dyle (department) Dyle (, ) was a departments of France, department ...
, believed this region, with its rough terrain, would be an unlikely invasion route of German forces; if it were traversed, it would be done at a slow rate that would allow the French time to bring up reserves and counterattacks. The German Army, having reformulated their plans from a repeat of the First World War-era plan, became aware of and exploited this weak point in the French defensive front. A rapid advance through the forest and across the River Meuse encircled much of the Allied forces, resulting in a sizeable force having to be evacuated at Dunkirk and leaving the troops to the south unable to mount an effective resistance to the German invasion of France.


Purposes

The Maginot Line was built to fulfill several purposes: * To prevent a German surprise attack. * To deter a cross-border assault. * To protect
Alsace Alsace (, ; ) is a cultural region and a territorial collectivity in the Grand Est administrative region of northeastern France, on the west bank of the upper Rhine, next to Germany and Switzerland. In January 2021, it had a population of 1,9 ...
and
Lorraine Lorraine, also , ; ; Lorrain: ''Louréne''; Lorraine Franconian: ''Lottringe''; ; ; is a cultural and historical region in Eastern France, now located in the administrative region of Grand Est. Its name stems from the medieval kingdom of ...
(returned to France in 1918) and their industrial basin. * To save manpower (France counted 39 million inhabitants, Germany 70 million). * To slow an attack to permit the mobilisation of the French Army (which took between two and three weeks). * To push Germany into an effort to circumvent via Switzerland or Belgium, and allow France to fight the next war off French soil to avoid a repeat of 1914–1918. * To be used as a basis for a counter-offensive.


Manning

Maginot Line fortifications were manned by specialist units of fortress infantry, artillery and engineers. The infantry manned the lighter weapons of the fortresses and formed units with the mission of operating outside if necessary. Artillery troops operated the heavy guns, and the engineers were responsible for maintaining and operating other specialist equipment, including all communications systems. All these troops wore distinctive uniform insignia and considered themselves among the elite of the French Army. During peacetime, fortresses were only partly manned by full-time troops. They would be supplemented by reservists who lived in the local area and who could be quickly mobilised in an emergency. Full-time Maginot Line troops were accommodated in
barracks Barracks are buildings used to accommodate military personnel and quasi-military personnel such as police. The English word originates from the 17th century via French and Italian from an old Spanish word 'soldier's tent', but today barracks ar ...
built close to the fortresses. They were also accommodated in complexes of wooden housing adjacent to each fortress, which were more comfortable than living inside, but were not expected to survive wartime bombardment. The training was carried out at a fortress near the town of
Bitche Bitche (English pronunciation: , ; German and Lorraine Franconian: ) is a commune in Moselle department, in the region of Grand Est in northeastern France. It is the Pays de Bitche's capital city, and the seat of the Canton of Bitche and the ...
in
Moselle The Moselle ( , ; ; ) is a river that rises in the Vosges mountains and flows through north-eastern France and Luxembourg to western Germany. It is a bank (geography), left bank tributary of the Rhine, which it joins at Koblenz. A sm ...
in
Lorraine Lorraine, also , ; ; Lorrain: ''Louréne''; Lorraine Franconian: ''Lottringe''; ; ; is a cultural and historical region in Eastern France, now located in the administrative region of Grand Est. Its name stems from the medieval kingdom of ...
, built in a military training area and so capable of live fire exercises. This was impossible elsewhere as the other parts of the line were located in civilian areas.


Organisation

Although the name "Maginot Line" suggests a relatively thin linear fortification, it was deep from the German border to the rear area. It was composed of an intricate system of strong points, fortifications and military facilities such as border guard posts, communications centres, infantry shelters, barricades, artillery, machine-gun and anti-tank-gun emplacements, supply depots, infrastructure facilities and observation posts. These various structures reinforced a ''principal line of resistance'' made up of the most heavily armed ''ouvrages'', which can be roughly translated as fortresses or big defensive works.


Border post line

This consisted of
blockhouse A blockhouse is a small fortification, usually consisting of one or more rooms with loopholes, allowing its defenders to fire in various directions. It is usually an isolated fort in the form of a single building, serving as a defensive stro ...
s and strong-houses, which were often
camouflage Camouflage is the use of any combination of materials, coloration, or illumination for concealment, either by making animals or objects hard to see, or by disguising them as something else. Examples include the leopard's spotted coat, the b ...
d as residential homes, built within a few metres of the border and manned by troops to give the alarm in the event of a surprise attack and to delay enemy tanks with prepared
explosive An explosive (or explosive material) is a reactive substance that contains a great amount of potential energy that can produce an explosion if released suddenly, usually accompanied by the production of light, heat, sound, and pressure. An ex ...
s and
barricade Barricade (from the French ''barrique'' - 'barrel') is any object or structure that creates a barrier or obstacle to control, block passage or force the flow of traffic in the desired direction. Adopted as a military term, a barricade denotes ...
s.


Outpost and support point line

Approximately behind the border there was a line of anti-tank blockhouses that were intended to provide resistance to armoured assault, sufficient to delay the enemy and allow time for the crews of the ''C.O.R.F. ouvrages'' to be ready at their battle stations. These outposts covered the main passages within the principal line.


Principal line of resistance

This line began behind the border. It was preceded by anti-tank obstacles made of metal rails planted vertically in six rows, with heights varying from and buried to a depth of . These anti-tank obstacles extended from end to end in front of the main works, over hundreds of kilometres, interrupted only by extremely dense forests, rivers, or other nearly impassable terrains. The anti-tank obstacle system was followed by an ''anti-personnel obstacle'' system made primarily of dense barbed wire. ''Anti-tank road barriers'' also made it possible to block roads at necessary points of passage through the tank obstacles.


Infantry casemates

These bunkers were armed with twin machine-guns (abbreviated as ''JM'' — ''Jumelage de mitrailleuses'' — in French) and
anti-tank gun An anti-tank gun is a form of artillery designed to destroy tanks and other armoured fighting vehicles, normally from a static defensive position. The development of specialized anti-tank munitions and anti-tank guns was prompted by the appearance ...
s of . They could be single (with a firing room in one direction) or double (two firing rooms in opposite directions). These generally had two floors, with a firing level and a support/infrastructure level that provided the troops with rest and services ( power-generating units, reserves of water, fuel, food, ventilation equipment, etc.). The infantry
casemate A casemate is a fortified gun emplacement or armoured structure from which guns are fired, in a fortification, warship, or armoured fighting vehicle.Webster's New Collegiate Dictionary When referring to antiquity, the term "casemate wall" ...
s often had one or two "cloches" or turrets located on top of them. These GFM cloches were sometimes used to emplace machine guns or observation periscopes. 20 to 30 men manned them.


''Petits ouvrages''

These small fortresses reinforced the line of infantry bunkers. The ''petits ouvrages'' were generally made up of several infantry bunkers, connected by a
tunnel network In transport, tunnels can be connected together to form a tunnel network. These can be used in mining to reach ore below ground, in cities for underground rapid transit systems, in sewer systems, in warfare to avoid enemy detection or attacks, ...
with attached underground facilities, such as barracks,
electric generator In electricity generation, a generator, also called an ''electric generator'', ''electrical generator'', and ''electromagnetic generator'' is an electromechanical device that converts mechanical energy to electrical energy for use in an externa ...
s, ventilation systems, mess halls, infirmaries and supply caches. Their crew consisted of between 100 and 200 men.


''Gros ouvrages''

These fortresses were the most important fortifications on the Maginot Line, having the sturdiest construction and the heaviest artillery. These were composed of at least six "forward bunker systems" or "combat blocks" and two entrances and were connected via a network of tunnels that often had narrow gauge electric railways for transport between bunker systems. The blocks contained infrastructure such as power stations, independent ventilating systems, barracks and mess halls, kitchens, water storage and distribution systems, hoists, ammunition stores, workshops and spare parts and food stores. Their crews ranged from 500 to more than 1,000 men.


Observation posts

These were located on hills that provided a good view of the surrounding area. Their purpose was to locate the enemy, direct and correct the indirect fire of artillery, and report on the progress and position of critical enemy units. These are large reinforced buried concrete bunkers, equipped with armoured turrets containing high-precision optics, connected with the other fortifications by field telephone and wireless transmitters (known in French by the acronym T.S.F., ''Télégraphie Sans Fil'').


Telephone network

This system connected every fortification in the Maginot Line, including bunkers, infantry and artillery fortresses, observation posts and shelters. Two telephone wires were placed parallel to the line of fortifications, providing redundancy in case a wire was cut. There were places along the cable where dismounted soldiers could connect to the network.


Infantry reserve shelters

These were found from behind the principal line of resistance. These were buried concrete bunkers designed to house and shelter up to a company of infantry (200 to 250 men). They had amenities such as electric generators, ventilation systems, water supplies, kitchens and heating, which allowed their occupants to hold out in the event of an attack. They could also be used as a local headquarters and counterattack base.


Flood zones

Flood zones were natural basins or rivers that could be flooded on demand and thus constitute an additional obstacle in the event of an enemy offensive.


Safety quarters

These were built near the major fortifications so fortress (''ouvrage'') crews could reach their battle stations in the shortest possible time in the event of a surprise attack during peacetime.


Supply depots


Ammunition dumps


Narrow-gauge railway system

A network of
narrow-gauge A narrow-gauge railway (narrow-gauge railroad in the US) is a railway with a track gauge (distance between the rails) narrower than . Most narrow-gauge railways are between and . Since narrow-gauge railways are usually built with tighter curv ...
railways was built to rearm and resupply the main fortresses (''ouvrages'') from supply depots up to away. Petrol-engined armoured locomotives pulled supply trains along these narrow-gauge lines. (A similar system was developed with armoured steam engines in 1914–1918.)


High-voltage transmission lines

Initially above-ground but then buried, and connected to the civil power grid, these provided electric power to the many fortifications and fortresses.


Heavy rail artillery

This was hauled by locomotives to planned locations to support the emplaced artillery in the fortresses, which was intentionally limited in range to .


Inventory


Ouvrages

There are 142 ''ouvrages'', 352
casemate A casemate is a fortified gun emplacement or armoured structure from which guns are fired, in a fortification, warship, or armoured fighting vehicle.Webster's New Collegiate Dictionary When referring to antiquity, the term "casemate wall" ...
s, 78 shelters, 17 observatories and around blockhouses in the Maginot Line.


Armoured cloches

There are several kinds of armoured cloches. Cloches are non-retractable turrets. The word ''cloche'' is a French term meaning ''bell'' due to its shape. All cloches were made of alloy steel. * The most widespread are the GFM cloches, where ''GFM'' means ''Guetteur fusil-mitrailleur'' (machine-gun sentry). They are composed of three to four openings, called crenels or embrasures. These crenels may be equipped as follows: light machine-guns, direct vision blocks, binoculars blocks or mortars. Sometimes, the cloche is topped by a periscope. There are GFM cloches on the line. Almost every block, casemate and shelter is topped by one or two GFM cloches. * The
JM cloche The JM cloche was an element of the Maginot Line. It was a non-retractable non-rotating cupola of steel alloy like GFM cloches, but were armed with twin heavy machine guns, as opposed to the lighter automatic rifles associated with the GFM. There ...
s (''jumelage de mitrailleuses'' or "twin machine guns") are the same as the GFM cloches except that they have one opening equipped with a pair of machine guns. There are 174 JM cloches on the line. * There are 72 AM cloches (''armes mixtes'' or "mixed weapons") on the line, equipped with a pair of machine guns and a anti-tank gun. Some GFM cloches were transformed into AM cloches in 1934. (The aforementioned total does not include these modified cloches.) * There are 75
LG cloche The LG cloche was a defensive element common to many Maginot Line ''ouvrages''. The fixed cupola was deeply embedded into the concrete on top of a combat block, with only the top surface visible. The opening permitted the ejection of grenades fro ...
s (''lance-grenade'' or "grenade launcher") on the line. Those cloches are almost completely covered by concrete, with only a small hole to launch grenades through for local defence. * There are 20 VP cloches (''vision périscopique'' or "periscopic vision") on the line. These cloches could be equipped with several different periscopes. Like the LG cloches, they were almost entirely covered by concrete. * The
VDP cloche The VDP cloche was an element of the Maginot Line fortifications. A ''cloche'' (bell) was a fixed and non-retractable firing position made of a thick iron casting which shielded its occupant. By comparison, turrets could be rotated and sometimes lo ...
s (''vision directe et périscopique'' or "direct and periscopic vision") are similar to the VP cloches but have two or three openings to provide a direct view. Consequently, they were not covered by concrete. File:Cloche gfm.jpg, GFM cloche File:Cloche jm.jpg, JM cloche File:Cloche am.jpg, AM cloche File:Cloche lg.jpg, LG cloche File:Cloche vp.jpg, VP cloche File:Cloche vdp.jpg, VDP cloche


Retractable turrets

The line included the following retractable turrets. * 21 turrets of model 1933 * 12 turrets of model 1932 * 1 turret of model 1905 * 17 turrets of * 21 turrets of * 12 turrets for mixed weapons (AM) * 7 turrets for mixed weapons + mortar of * 61 turrets of machine-guns File:Turret75.JPG, Turret model 1932 File:135Turret.JPG, Turret File:81Turret.JPG, Turret File:Tourelle jm.jpg, Machine-gun Turret File:AMTurret.JPG, AM (Mixed-Weapons) Turret


Artillery

Both static and mobile artillery units were assigned to defend the Maginot Line. ''Régiments d'artillerie de position'' (RAP) consisted of static artillery units. ''Régiments d'artillerie mobile de forteresse'' (RAMF) consisted of mobile artillery.


Anti-tank guns

* Canon de 25 mm SA Mle1934 * SA-L Mle1937 (Puteaux) L/72 * AC 37 * AC 47


History


Planning and construction

The defences were first proposed by Marshal
Joseph Joffre Joseph Jacques Césaire Joffre , (; 12 January 1852 – 3 January 1931) was a French general who served as Commander-in-Chief of French forces on the Western Front (World War I), Western Front from the start of World War I until the end of 19 ...
. He was opposed by modernists such as Paul Reynaud and
Charles de Gaulle Charles André Joseph Marie de Gaulle (22 November 18909 November 1970) was a French general and statesman who led the Free France, Free French Forces against Nazi Germany in World War II and chaired the Provisional Government of the French Re ...
, who favoured investment in armour and aircraft. Joffre had support from Marshal Henri Philippe Pétain, and the government organised many reports and commissions. André Maginot finally convinced the government to invest in the scheme. Maginot was another veteran of World War I; he became the French Minister of Veteran Affairs and then
Minister of War A ministry of defence or defense (see American and British English spelling differences#-ce.2C -se, spelling differences), also known as a department of defence or defense, is the part of a government responsible for matters of defence and Mi ...
(1928–1932). In January 1923, after
Weimar Germany The Weimar Republic, officially known as the German Reich, was the German Reich, German state from 1918 to 1933, during which it was a constitutional republic for the first time in history; hence it is also referred to, and unofficially proclai ...
defaulted on reparations, the French Premier
Raymond Poincaré Raymond Nicolas Landry Poincaré (; 20 August 1860 – 15 October 1934) was a French statesman who served as President of France from 1913 to 1920, and three times as Prime Minister of France. He was a conservative leader, primarily committed to ...
responded by sending French troops to occupy Germany's
Ruhr The Ruhr ( ; , also ''Ruhrpott'' ), also referred to as the Ruhr Area, sometimes Ruhr District, Ruhr Region, or Ruhr Valley, is a polycentric urban area in North Rhine-Westphalia, Germany. With a population density of 1,160/km2 and a populati ...
region. During the ensuing ''Ruhrkampf'' ("Ruhr struggle") between the Germans and the French that lasted until September 1923, Britain condemned the French occupation of the Ruhr. A period of sustained
Francophobia Anti-French sentiment (Francophobia or Gallophobia) is the fear of, discrimination against, prejudice of, or hatred towards France, the French people, French culture, the French government or the Francophonie (set of political entities that use Fr ...
broke out in Britain, with Poincaré being vilified in Britain as a cruel bully punishing Germany with unreasonable reparations demands. The British—who openly championed the German position on reparations—applied intense economic pressure on France to change its policies towards Germany. At a conference in London in 1924 to settle the Franco-German crisis caused by the ''Ruhrkampf'', the British Prime Minister
Ramsay MacDonald James Ramsay MacDonald (; 12 October 18669 November 1937) was a British statesman and politician who served as Prime Minister of the United Kingdom. The first two of his governments belonged to the Labour Party (UK), Labour Party, where he led ...
successfully pressed the French Premier
Édouard Herriot Édouard Marie Herriot (; 5 July 1872 – 26 March 1957) was a French Radical politician of the Third Republic who served three times as Prime Minister (1924–1925; 1926; 1932) and twice as President of the Chamber of Deputies. He led the f ...
to make concessions to Germany. The British diplomat Sir Eric Phipps, who attended the conference, commented afterwards that:
The London Conference was for the French 'man in the street' one long Calvary as he saw M. Herriot abandoning one by one the cherished possessions of French preponderance on the Reparations Commission, the right of sanctions in the event of German default, the economic occupation of the Ruhr, the French-Belgian railway ''Régie'', and finally, the military occupation of the Ruhr within a year.
The great conclusion that was drawn in Paris after the ''Ruhrkampf'' and the 1924 London Conference was that France could not make unilateral military moves to uphold
Versailles The Palace of Versailles ( ; ) is a former royal residence commissioned by King Louis XIV located in Versailles, Yvelines, Versailles, about west of Paris, in the Yvelines, Yvelines Department of Île-de-France, Île-de-France region in Franc ...
as the resulting British hostility to such moves was too dangerous to the republic. Beyond that, the French were well aware of the contribution of Britain and its dominions to the victory of 1918. French decision-makers believed they needed Britain's help to win another war; the French could only go so far with alienating the British. From 1871 forward, French elites had concluded that France had no hope of defeating Germany on its own, and France would need an alliance with another great power to defeat the ''Reich''.


1927: Allied Control Commission abolished

In 1926, ''
The Manchester Guardian ''The Guardian'' is a British daily newspaper. It was founded in Manchester in 1821 as ''The Manchester Guardian'' and changed its name in 1959, followed by a move to London. Along with its sister paper, ''The Guardian Weekly'', ''The Guardi ...
'' ran an exposé showing the ''
Reichswehr ''Reichswehr'' (; ) was the official name of the German armed forces during the Weimar Republic and the first two years of Nazi Germany. After Germany was defeated in World War I, the Imperial German Army () was dissolved in order to be reshaped ...
'' had been developing military technology forbidden by the
Treaty of Versailles The Treaty of Versailles was a peace treaty signed on 28 June 1919. As the most important treaty of World War I, it ended the state of war between Germany and most of the Allies of World War I, Allied Powers. It was signed in the Palace ...
in the
Soviet Union The Union of Soviet Socialist Republics. (USSR), commonly known as the Soviet Union, was a List of former transcontinental countries#Since 1700, transcontinental country that spanned much of Eurasia from 1922 until Dissolution of the Soviet ...
. The secret German-Soviet cooperation started in 1921. The German statement following ''The Manchester Guardian''s article that Germany did not feel bound by the terms of Versailles and would violate them as much as possible gave much offence in France. Nonetheless, in 1927, the
Inter-Allied Commission The term Military Inter-Allied Commission of Control was used in a series of peace treaties concluded after the First World War (1914–1918) between different countries. Each of these treaties was concluded between the Principal Allied and A ...
, which was responsible for ensuring that Germany complied with Part V of the Treaty of Versailles, was abolished as a goodwill gesture reflecting the "Spirit of
Locarno Locarno (; ; Ticinese dialect, Ticinese: ; formerly in ) is a southern Switzerland, Swiss List of towns in Switzerland, town and Municipalities of Switzerland, municipality in the district Locarno (district), Locarno (of which it is the capita ...
". When the Control Commission was dissolved, the commissioners in their final report issued a blistering statement, stating that Germany had never sought to abide by Part V and the ''Reichswehr'' had been engaging in covert rearmament all through the 1920s. Under the Treaty of Versailles, France was to occupy the Rhineland region of Germany until 1935. Still, the last French troops left the Rhineland in June 1930 in exchange for Germany accepting the
Young Plan The Young Plan was a 1929 attempt to settle issues surrounding the World War I reparations obligations that Germany owed under the terms of Treaty of Versailles. Developed to replace the 1924 Dawes Plan, the Young Plan was negotiated in Paris f ...
. As long as the French occupied the Rhineland, it served as a type of collateral under which the French would annex the Rhineland in the event of Germany breaching any of the articles of the treaty, such as rearming in violation of Part V; this threat was powerful enough to deter successive German governments all through the 1920s from attempting any overt violation of Part V. French plans as developed by Marshal
Ferdinand Foch Ferdinand Foch ( , ; 2 October 1851 – 20 March 1929) was a French general, Marshal of France and a member of the Académie Française and French Academy of Sciences, Académie des Sciences. He distinguished himself as Supreme Allied Commander ...
in 1919 were based on the assumption that in the event of a war with the ''Reich'', the French forces in the Rhineland were to embark upon an offensive to seize the Ruhr. A variant of the Foch plan had been used by Poincaré in 1923 when he ordered the French occupation of the Ruhr. French plans for an offensive in the 1920s were realistic, as Versailles had forbidden German conscription, and the ''Reichswehr'' was limited to 100,000 men. Once the French forces left the
Rhineland The Rhineland ( ; ; ; ) is a loosely defined area of Western Germany along the Rhine, chiefly Middle Rhine, its middle section. It is the main industrial heartland of Germany because of its many factories, and it has historic ties to the Holy ...
in 1930, this form of leverage with the Rhineland as collateral was no longer available to Paris, which from then on had to depend on Berlin's word that it would continue to abide by the terms of the Versailles and Locarno treaties, which stated that the Rhineland was to stay demilitarised forever. Given that Germany had engaged in covert rearmament with the co-operation of the Soviet Union starting in 1921 (a fact that had become public knowledge in 1926) and that every German government had gone out of its way to insist on the moral invalidity of Versailles, claiming it was based upon the so-called ''Kriegsschuldlüge'' ("War guilt lie") that Germany started the war in 1914, the French had little faith that the Germans would willingly allow the Rhineland's demilitarised status to continue forever, and believed that at some time in the future, Germany would rearm in violation of Versailles, reintroduce conscription and remilitarise the Rhineland. The decision to build the Maginot Line in 1929 was a tacit French admission that without the Rhineland as collateral, Germany was soon going to rearm and that the terms of Part V had a limited lifespan.


German economic superiority

After 1918, the German economy was twice as large as that of France; Germany had a population of 70 million compared to France's 40 million, and the French economy was hobbled by the need to reconstruct the enormous damage of World War I, while German territory had seen little fighting. French military chiefs were dubious about their ability to win another war against Germany on its own, especially an offensive war. French decision-makers knew that the victory of 1918 had been achieved because the British Empire and the United States were allies in the war and that the French would have been defeated on their own. With the United States isolationist and Britain stoutly refusing to make the "continental commitment" to defend France on the same scale as in World War I, the prospects of Anglo-American assistance in another war with Germany appeared to be doubtful at best. Versailles did not call for military sanctions in the event of the German military reoccupying the Rhineland or breaking Part V, while Locarno committed Britain and Italy to come to French aid in the event of a "flagrant violation" of the Rhineland's demilitarised status, it did not define what a "flagrant violation" would be. The British and Italian governments refused in subsequent diplomatic talks to define "flagrant violation", which led the French to place little hope in Anglo-Italian help if German military forces should reoccupy the Rhineland. Given the diplomatic situation in the late 1920s, the Quai d'Orsay informed the government that French military planning should be based on a worst-case scenario that France would fight the next war against Germany without the help of Britain or the United States. France had an alliance with
Belgium Belgium, officially the Kingdom of Belgium, is a country in Northwestern Europe. Situated in a coastal lowland region known as the Low Countries, it is bordered by the Netherlands to the north, Germany to the east, Luxembourg to the southeas ...
and with the states of the '' Cordon sanitaire'', as the French alliance system in
Eastern Europe Eastern Europe is a subregion of the Europe, European continent. As a largely ambiguous term, it has a wide range of geopolitical, geographical, ethnic, cultural and socio-economic connotations. Its eastern boundary is marked by the Ural Mountain ...
was known. Although the alliances with Belgium,
Poland Poland, officially the Republic of Poland, is a country in Central Europe. It extends from the Baltic Sea in the north to the Sudetes and Carpathian Mountains in the south, bordered by Lithuania and Russia to the northeast, Belarus and Ukrai ...
,
Czechoslovakia Czechoslovakia ( ; Czech language, Czech and , ''Česko-Slovensko'') was a landlocked country in Central Europe, created in 1918, when it declared its independence from Austria-Hungary. In 1938, after the Munich Agreement, the Sudetenland beca ...
,
Romania Romania is a country located at the crossroads of Central Europe, Central, Eastern Europe, Eastern and Southeast Europe. It borders Ukraine to the north and east, Hungary to the west, Serbia to the southwest, Bulgaria to the south, Moldova to ...
and
Yugoslavia , common_name = Yugoslavia , life_span = 1918–19921941–1945: World War II in Yugoslavia#Axis invasion and dismemberment of Yugoslavia, Axis occupation , p1 = Kingdom of SerbiaSerbia , flag_p ...
were appreciated in Paris, it was widely understood that this was no compensation for the absence of Britain and the United States. The French military was especially insistent that the population disparity made an offensive war of manoeuvre and swift advances suicidal, as there would always be far more German divisions; a defensive strategy was needed to counter Germany. The French assumption was always that Germany would not go to war without conscription, which would allow the German Army to take advantage of the ''Reich''s numerical superiority. Without the natural defensive barrier provided by the
Rhine The Rhine ( ) is one of the List of rivers of Europe, major rivers in Europe. The river begins in the Swiss canton of Graubünden in the southeastern Swiss Alps. It forms part of the Swiss-Liechtenstein border, then part of the Austria–Swit ...
River, French generals argued that France needed a new defensive barrier made of concrete and steel to replace it. The power of properly dug-in defensive trenches had been amply demonstrated during World War I, when a few soldiers manning a single machine gun post could kill hundreds of the enemy in the open and therefore building a massive defensive line with subterranean concrete shelters was the most rational use of French manpower. The American historian William Keylor wrote that given the diplomatic conditions of 1929 and likely trends – with the United States isolationist and Britain unwilling to make the "continental commitment" – the decision to build the Maginot Line was not irrational and stupid, as building the Maginot Line was a sensible response to the problems that would be created by the coming French withdrawal from the Rhineland in 1930. Part of the rationale for the Maginot Line stemmed from the severe French losses during the First World War and their effect on the French population. The drop in the birth rate during and after the war, resulting in a national shortage of young men, created an "echo" effect on the generation that provided the French conscript army in the mid-1930s. Faced with a manpower shortage, French planners had to rely more on older and less fit
reservist A reservist is a person who is a member of a military reserve force. They are otherwise civilians, and in peacetime have careers outside the military. Reservists usually go for training on an annual basis to refresh their skills. This person ca ...
s, who would take longer to mobilise and would diminish the French industry because they would leave their jobs. Static defensive positions were therefore intended not only to buy time but to economise on men by defending an area with fewer and less mobile forces. However, in 1940, France deployed about twice as many men, 36 divisions (roughly one third of its force), for the defence of the Maginot Line in Alsace and Lorraine. In contrast, the opposing German
Army Group C Army Group C () was an army group of the German Wehrmacht during World War II. In its first deployment between 1939 and 1941, its main assignment was the defense of the Franco-German border during the Phony War and the Western Campaign, after whi ...
only contained 19 divisions, fewer than a seventh of the force committed in the Manstein Plan for the invasion of France. Reflecting memories of World War I, the French General Staff had developed the concept of ''la puissance du feu'' ("the power of fire"), the power of
artillery Artillery consists of ranged weapons that launch Ammunition, munitions far beyond the range and power of infantry firearms. Early artillery development focused on the ability to breach defensive walls and fortifications during sieges, and l ...
dug in and sheltered by concrete and steel, to inflict devastating losses on an attacking force.


Preparing for a long war

French planning for war with Germany was always based on the assumption that the war would be ''la guerre de longue durée'' (the long war), in which the superior economic resources of the Allies would gradually grind the Germans down. The fact that the ''Wehrmacht'' embraced the strategy of
Blitzkrieg ''Blitzkrieg'(Lightning/Flash Warfare)'' is a word used to describe a combined arms surprise attack, using a rapid, overwhelming force concentration that may consist of armored and motorized or mechanized infantry formations, together with ...
(Lightning War) with the vision of swift wars in which Germany would win quickly via a knockout blow was a testament to the fundamental soundness of the concept of ''la guerre de longue durée''. Germany had the largest economy in Europe but lacked many of the raw materials necessary for a modern industrial economy (making the ''Reich'' vulnerable to a blockade) and the ability to feed its population. The ''guerre de longue durée'' strategy called for the French to halt the expected German offensive meant to give the ''Reich'' a swift victory; afterwards, there would be an attrition struggle; once the Germans were exhausted, France would begin an offensive to win the war. The Maginot Line was intended to block the main German blow if it should come via eastern France and divert it through Belgium, where French forces would meet and stop the Germans. The Germans were expected to fight costly offensives, whose failures would sap the strength of the ''Reich'', while the French waged a
total war Total war is a type of warfare that includes any and all (including civilian-associated) resources and infrastructure as legitimate military targets, mobilises all of the resources of society to fight the war, and gives priority to warfare ov ...
, mobilising the resources of France, its empire and allies. Besides the demographic reasons, a defensive strategy served the needs of French diplomacy towards Great Britain. The French imported a third of their
coal Coal is a combustible black or brownish-black sedimentary rock, formed as rock strata called coal seams. Coal is mostly carbon with variable amounts of other Chemical element, elements, chiefly hydrogen, sulfur, oxygen, and nitrogen. Coal i ...
from Britain, and 32 per cent of all imports through French ports were carried by British ships. Of French trade, 35 per cent was with the
British Empire The British Empire comprised the dominions, Crown colony, colonies, protectorates, League of Nations mandate, mandates, and other Dependent territory, territories ruled or administered by the United Kingdom and its predecessor states. It bega ...
and the majority of the
tin Tin is a chemical element; it has symbol Sn () and atomic number 50. A silvery-colored metal, tin is soft enough to be cut with little force, and a bar of tin can be bent by hand with little effort. When bent, a bar of tin makes a sound, the ...
,
rubber Rubber, also called India rubber, latex, Amazonian rubber, ''caucho'', or ''caoutchouc'', as initially produced, consists of polymers of the organic compound isoprene, with minor impurities of other organic compounds. Types of polyisoprene ...
,
jute Jute ( ) is a long, rough, shiny bast fibre that can be Spinning (textiles), spun into coarse, strong threads. It is produced from flowering plants in the genus ''Corchorus'', of the mallow family Malvaceae. The primary source of the fiber is ...
,
wool Wool is the textile fiber obtained from sheep and other mammals, especially goats, rabbits, and camelids. The term may also refer to inorganic materials, such as mineral wool and glass wool, that have some properties similar to animal w ...
and
manganese Manganese is a chemical element; it has Symbol (chemistry), symbol Mn and atomic number 25. It is a hard, brittle, silvery metal, often found in minerals in combination with iron. Manganese was first isolated in the 1770s. It is a transition m ...
used by France came from the British Empire. About 55 per cent of overseas imports arrived in France via the Channel ports of
Calais Calais ( , , traditionally , ) is a French port city in the Pas-de-Calais department, of which it is a subprefecture. Calais is the largest city in Pas-de-Calais. The population of the city proper is 67,544; that of the urban area is 144,6 ...
,
Le Havre Le Havre is a major port city in the Seine-Maritime department in the Normandy (administrative region), Normandy region of northern France. It is situated on the right bank of the estuary of the Seine, river Seine on the English Channel, Channe ...
,
Cherbourg Cherbourg is a former Communes of France, commune and Subprefectures in France, subprefecture located at the northern end of the Cotentin peninsula in the northwestern French departments of France, department of Manche. It was merged into the com ...
,
Boulogne Boulogne-sur-Mer (; ; ; or ''Bononia''), often called just Boulogne (, ), is a coastal city in Hauts-de-France, Northern France. It is a Subprefectures in France, sub-prefecture of the Departments of France, department of Pas-de-Calais. Boul ...
,
Dieppe Dieppe (; ; or Old Norse ) is a coastal commune in the Seine-Maritime department, Normandy, northern France. Dieppe is a seaport on the English Channel at the mouth of the river Arques. A regular ferry service runs to Newhaven in England ...
,
Saint-Malo Saint-Malo (, , ; Gallo language, Gallo: ; ) is a historic French port in Ille-et-Vilaine, Brittany (administrative region), Brittany. The Fortification, walled city on the English Channel coast had a long history of piracy, earning much wealth ...
and
Dunkirk Dunkirk ( ; ; ; Picard language, Picard: ''Dunkèke''; ; or ) is a major port city in the Departments of France, department of Nord (French department), Nord in northern France. It lies from the Belgium, Belgian border. It has the third-larg ...
. Germany had to import most of its iron, rubber, oil,
bauxite Bauxite () is a sedimentary rock with a relatively high aluminium content. It is the world's main source of aluminium and gallium. Bauxite consists mostly of the aluminium minerals gibbsite (), boehmite (γ-AlO(OH)), and diaspore (α-AlO(OH) ...
, copper and
nickel Nickel is a chemical element; it has symbol Ni and atomic number 28. It is a silvery-white lustrous metal with a slight golden tinge. Nickel is a hard and ductile transition metal. Pure nickel is chemically reactive, but large pieces are slo ...
, making
naval blockade A navy, naval force, military maritime fleet, war navy, or maritime force is the branch of a nation's armed forces principally designated for naval and amphibious warfare; namely, lake-borne, riverine, littoral, or ocean-borne combat operations ...
a devastating weapon against the German economy. For economic reasons, the success of the strategy of ''la guerre de longue durée'' would at the very least require Britain to maintain a
benevolent neutrality A neutral country is a state that is neutral towards belligerents in a specific war or holds itself as permanently neutral in all future conflicts (including avoiding entering into military alliances such as NATO, CSTO or the SCO). As a type o ...
, preferably to enter the war as an ally as British sea power could protect French imports while depriving Germany of hers. A defensive strategy based on the Maginot Line was an excellent way of demonstrating to Britain that France was not an aggressive power and would only go to war in the event of German aggression, a situation that would make it more likely that Britain would enter the war on France's side. The line was built in several phases from 1930 by the ''Service Technique du Génie'' (STG), overseen by ''Commission d'Organisation des Régions Fortifiées'' (CORF). The main construction was largely completed by 1939, at the cost of around 3
billion Billion is a word for a large number, and it has two distinct definitions: * 1,000,000,000, i.e. one thousand million, or (ten to the ninth power), as defined on the short scale. This is now the most common sense of the word in all varieties of ...
French franc The franc (; , ; currency sign, sign: F or Fr), also commonly distinguished as the (FF), was a currency of France. Between 1360 and 1641, it was the name of coins worth 1 livre tournois and it remained in common parlance as a term for this amoun ...
s (around 3.9 billion in today's U.S. dollar’s worth). The line stretched from
Switzerland Switzerland, officially the Swiss Confederation, is a landlocked country located in west-central Europe. It is bordered by Italy to the south, France to the west, Germany to the north, and Austria and Liechtenstein to the east. Switzerland ...
to
Luxembourg Luxembourg, officially the Grand Duchy of Luxembourg, is a landlocked country in Western Europe. It is bordered by Belgium to the west and north, Germany to the east, and France on the south. Its capital and most populous city, Luxembour ...
and a much lighter extension was extended to the
Strait of Dover The Strait of Dover or Dover Strait, historically known as the Dover Narrows, is the strait at the narrowest part of the English Channel, marking the boundary between the Channel and the North Sea, and separating Great Britain from continental ...
after 1934. The original construction did not cover the area ultimately chosen by the Germans for their first challenge, which was through the
Ardennes The Ardennes ( ; ; ; ; ), also known as the Ardennes Forest or Forest of Ardennes, is a region of extensive forests, rough terrain, rolling hills and ridges primarily in Belgium and Luxembourg, extending into Germany and France. Geological ...
in 1940, a plan known as '' Fall Gelb'' (Case Yellow), due to the neutrality of Belgium. The location of this attack, chosen because of the location of the Maginot Line, was through the Belgian Ardennes Forest (sector 4), which is off the map to the left of Maginot Line sector 6 (as marked).


Features

The specification of the defences was very high, with extensive and interconnected
bunker A bunker is a defensive military fortification designed to protect people and valued materials from falling bombs, artillery, or other attacks. Bunkers are almost always underground, in contrast to blockhouses which are mostly above ground. T ...
complexes for thousands of men; there were 45 main
fort A fortification (also called a fort, fortress, fastness, or stronghold) is a military construction designed for the defense of territories in warfare, and is used to establish rule in a region during peacetime. The term is derived from La ...
s (''grands ouvrages'') at intervals of , 97 smaller forts (''petits ouvrages'') and 352 casemates between, with over of
tunnel A tunnel is an underground or undersea passageway. It is dug through surrounding soil, earth or rock, or laid under water, and is usually completely enclosed except for the two portals common at each end, though there may be access and ve ...
s. Artillery was coordinated with protective measures to ensure that one fort could support the next in line by bombarding it directly without harm. The largest guns were, therefore fortress guns; larger weapons were to be part of the mobile forces and were to be deployed behind the lines. The fortifications did not extend through the Ardennes Forest (which was believed to be impenetrable by Commander-in-Chief
Maurice Gamelin Maurice Gustave Gamelin (; 20 September 1872 – 18 April 1958) was a French general. He is remembered for his disastrous command (until 17 May 1940) of the French military during the Battle of France in World War II and his steadfast defence of ...
) or along France's border with Belgium because the two countries had signed an alliance in 1920, by which the French army would operate in Belgium if the German forces invaded. However, after France had failed to counter the German remilitarisation of the Rhineland, Belgium—thinking that France was not a reliable ally—abrogated the treaty in 1936 and declared neutrality. France quickly extended the Maginot Line along the Franco-Belgian border, but not to the standard of the rest of the line. As the
water table The water table is the upper surface of the phreatic zone or zone of saturation. The zone of saturation is where the pores and fractures of the ground are saturated with groundwater, which may be fresh, saline, or brackish, depending on the loc ...
in this region is high, there was the danger of underground passages getting flooded, which the line designers knew would be difficult and expensive to overcome. In 1939 U.S. Army officer Kenneth Nichols visited the
Metz Metz ( , , , then ) is a city in northeast France located at the confluence of the Moselle (river), Moselle and the Seille (Moselle), Seille rivers. Metz is the Prefectures in France, prefecture of the Moselle (department), Moselle Departments ...
sector, where he was impressed by the formidable formations which he thought the Germans would have to outflank by driving through Belgium. In discussion with General Brousseau, the commander of the
Metz Metz ( , , , then ) is a city in northeast France located at the confluence of the Moselle (river), Moselle and the Seille (Moselle), Seille rivers. Metz is the Prefectures in France, prefecture of the Moselle (department), Moselle Departments ...
sector and other officers, the general outlined the French problem in extending the line to the sea in that placing the line along the Belgian-German border required the agreement of Belgium, but putting the line along the French-Belgian border relinquished Belgium to the Germans. Another complication was Holland, and the various governments never resolved their problems. When the British Expeditionary Force landed in France in September 1939, they and the French reinforced and extended the Maginot line to the sea in a flurry of construction from 1939 to 1940, accompanied by general improvements all along the line. The final line was strongest around the industrial regions of
Metz Metz ( , , , then ) is a city in northeast France located at the confluence of the Moselle (river), Moselle and the Seille (Moselle), Seille rivers. Metz is the Prefectures in France, prefecture of the Moselle (department), Moselle Departments ...
, Lauter and
Alsace Alsace (, ; ) is a cultural region and a territorial collectivity in the Grand Est administrative region of northeastern France, on the west bank of the upper Rhine, next to Germany and Switzerland. In January 2021, it had a population of 1,9 ...
, while other areas were, in comparison, only weakly guarded. In contrast, the propaganda about the line made it appear far greater a construction than it was; illustrations showed multiple storeys of interwoven passages and even underground
rail yard A rail yard, railway yard, railroad yard (US) or simply yard, is a series of Track (rail transport), tracks in a rail network for storing, sorting, or loading and unloading rail vehicles and locomotives. Yards have many tracks in parallel for k ...
s and cinemas. This reassured allied civilians.


Czechoslovak connection

Czechoslovakia Czechoslovakia ( ; Czech language, Czech and , ''Česko-Slovensko'') was a landlocked country in Central Europe, created in 1918, when it declared its independence from Austria-Hungary. In 1938, after the Munich Agreement, the Sudetenland beca ...
also feared Hitler and began building its own defences. As an ally of France, they got advice on the Maginot design and applied it to
Czechoslovak border fortifications First Republic of Czechoslovakia, Czechoslovakia built a system of border fortifications as well as some fortified defensive lines inland, from 1935 to 1938 as a defensive countermeasure against the rising threat of Nazi Germany. The objective of ...
. The design of the casemates is similar to the ones found in the southern part of the Maginot Line, and photographs of them are often confused with Maginot forts. Following the
Munich Agreement The Munich Agreement was reached in Munich on 30 September 1938, by Nazi Germany, the United Kingdom, the French Third Republic, French Republic, and the Kingdom of Italy. The agreement provided for the Occupation of Czechoslovakia (1938–194 ...
and the
German occupation of Czechoslovakia German(s) may refer to: * Germany, the country of the Germans and German things **Germania (Roman era) * Germans, citizens of Germany, people of German ancestry, or native speakers of the German language ** For citizenship in Germany, see also Ge ...
, the Germans were able to use the Czech fortifications to plan attacks that proved successful against the western fortifications (the Belgian Fort Eben-Emael is the best-known example).


German invasion in World War II

The World War II German invasion plan of 1940 (''Sichelschnitt'') was designed to deal with the line. A decoy force sat opposite the line while a second Army Group cut through the
Low Countries The Low Countries (; ), historically also known as the Netherlands (), is a coastal lowland region in Northwestern Europe forming the lower Drainage basin, basin of the Rhine–Meuse–Scheldt delta and consisting today of the three modern "Bene ...
of Belgium and the Netherlands, as well as through the
Ardennes The Ardennes ( ; ; ; ; ), also known as the Ardennes Forest or Forest of Ardennes, is a region of extensive forests, rough terrain, rolling hills and ridges primarily in Belgium and Luxembourg, extending into Germany and France. Geological ...
Forest, which lay north of the main French defences. Thus the Germans were able to avoid a direct assault on the Maginot Line by violating the neutrality of Belgium,
Luxembourg Luxembourg, officially the Grand Duchy of Luxembourg, is a landlocked country in Western Europe. It is bordered by Belgium to the west and north, Germany to the east, and France on the south. Its capital and most populous city, Luxembour ...
and
the Netherlands , Terminology of the Low Countries, informally Holland, is a country in Northwestern Europe, with Caribbean Netherlands, overseas territories in the Caribbean. It is the largest of the four constituent countries of the Kingdom of the Nether ...
. Attacking on 10 May, German forces were well into France within five days and they continued to advance until 24 May, when they stopped near
Dunkirk Dunkirk ( ; ; ; Picard language, Picard: ''Dunkèke''; ; or ) is a major port city in the Departments of France, department of Nord (French department), Nord in northern France. It lies from the Belgium, Belgian border. It has the third-larg ...
. During the advance to the
English Channel The English Channel, also known as the Channel, is an arm of the Atlantic Ocean that separates Southern England from northern France. It links to the southern part of the North Sea by the Strait of Dover at its northeastern end. It is the busi ...
, the Germans overran France's border defence with Belgium and several Maginot Forts in the
Maubeuge Maubeuge (; historical or ; ) is a Communes of France, commune in the Nord (French department), Nord Departments of France, department in northern France. It is situated on both banks of the Sambre (here canalized), east of Valenciennes and ab ...
area whilst the
Luftwaffe The Luftwaffe () was the aerial warfare, aerial-warfare branch of the before and during World War II. German Empire, Germany's military air arms during World War I, the of the Imperial German Army, Imperial Army and the of the Imperial Ge ...
simply flew over it. On 19 May, the German 16th Army captured the isolated petit ouvrage La Ferté (south-east of Sedan) after conducting a deliberate assault by
combat engineer A combat engineer (also called pioneer or sapper) is a type of soldier who performs military engineering tasks in support of land forces combat operations. Combat engineers perform a variety of military engineering, Tunnel warfare, tunnel and l ...
s backed up by heavy artillery, taking the fortifications in only four days. The entire French crew of 107 soldiers was killed during the action. On 14 June 1940, the day Paris fell, the German 1st Army went over to the offensive in "Operation Tiger" and attacked the Maginot Line between St Avold and
Saarbrücken Saarbrücken (; Rhenish Franconian: ''Sabrigge'' ; ; ; ; ) is the capital and largest List of cities and towns in Germany, city of the state of Saarland, Germany. Saarbrücken has 181,959 inhabitants and is Saarland's administrative, commerci ...
. The Germans then broke through the fortification line as defending French forces retreated southward. In the following days, infantry divisions of the 1st Army attacked fortifications on each side of the penetration, capturing four petits ouvrages. The 1st Army also conducted two attacks against the Maginot Line further to the east in northern Alsace. One attack broke through a weak section of the line in the
Vosges Mountains The Vosges ( , ; ; Franconian (linguistics), Franconian and ) is a range of medium mountains in Eastern France, near its France–Germany border, border with Germany. Together with the Palatine Forest to the north on the German side of the bor ...
, but the French defenders stopped a second attack near
Wissembourg Wissembourg (; South Franconian: ''Weisseburch'' ; German: ''Weißenburg'' ) is a commune in the Bas-Rhin department in Grand Est in northeastern France. Wissembourg was a sub-prefecture of the department until 2015. The name ''Wissembourg'' ...
. On 15 June, infantry divisions of the German 7th Army attacked across the Rhine River in Operation "Small Bear", deeply penetrating the defences and capturing the cities of
Colmar Colmar (; ; or ) is a city and commune in the Haut-Rhin department and Alsace region of north-eastern France. The third-largest commune in Alsace (after Strasbourg and Mulhouse), it is the seat of the prefecture of the Haut-Rhin department ...
and
Strasbourg Strasbourg ( , ; ; ) is the Prefectures in France, prefecture and largest city of the Grand Est Regions of France, region of Geography of France, eastern France, in the historic region of Alsace. It is the prefecture of the Bas-Rhin Departmen ...
. By early June, the German forces had cut off the line from the rest of France, and the
French government The Government of France (, ), officially the Government of the French Republic (, ), exercises Executive (government), executive power in France. It is composed of the Prime Minister of France, prime minister, who is the head of government, ...
was making overtures for an
armistice An armistice is a formal agreement of warring parties to stop fighting. It is not necessarily the end of a war, as it may constitute only a cessation of hostilities while an attempt is made to negotiate a lasting peace. It is derived from t ...
, which was signed on 22 June in
Compiègne Compiègne (; ) is a Communes of France, commune in the Oise Departments of France, department of northern France. It is located on the river Oise (river), Oise, and its inhabitants are called ''Compiégnois'' (). Administration Compiègne is t ...
. As the line was surrounded, the German Army attacked a few ouvrages from the rear but was unsuccessful in capturing any significant fortifications. The main fortifications of the line were still mostly intact, many commanders were prepared to hold out, and the Italian advance had been contained. Nevertheless,
Maxime Weygand Maxime Weygand (; 21 January 1867 – 28 January 1965) was a French military commander in World War I and World War II, as well as a high ranking member of the Vichy France, Vichy regime. Born in Belgium, Weygand was raised in France and educate ...
signed the surrender instrument and the army was ordered out of their fortifications to be taken to POW camps. When the Allied forces invaded in June 1944, the line, now held by German defenders, was again largely bypassed; fighting touched only portions of the fortifications near Metz and in northern Alsace towards the end of 1944. During the German offensive
Operation Nordwind Operation Northwind () was the last major German offensive of World War II on the Western Front. Northwind was launched to support the German Ardennes offensive campaign in the Battle of the Bulge, which by late December 1944 had decisively ...
in January 1945, Maginot Line casemates and fortifications were utilised by Allied forces, especially in the Bas-Rhin department in
Grand Est Grand Est (; ) is an Regions of France, administrative region in northeastern France. It superseded three former administrative regions, Alsace, Champagne-Ardenne and Lorraine, on 1 January 2016 under the provisional name of Alsace-Champagne-A ...
, and some German units had been supplemented with flamethrower tanks in anticipation of this possibility. In January 1945 von Luck with 21 Panzerdivision was tasked with cutting through the old Maginot Line defences and severing Allied links with Strasbourg as part of Operation Nordwind. He was told there were no plans available of the Line but that it was “barely manned and constituted no obstacle”. However they came up against fierce resistance and concentrated American artillery fire. They had to withdraw on 6 January 1945 and again after another attack on 8 January, although they drove a "tiny wedge" into the Line. Stephen Ambrose wrote that in January 1945, "a part of the line was used for the purpose it had been designed for and showed what a superb fortification it was." Here the Line ran east-west, around the villages of Rittershoffen and Hatten, south of
Wissembourg Wissembourg (; South Franconian: ''Weisseburch'' ; German: ''Weißenburg'' ) is a commune in the Bas-Rhin department in Grand Est in northeastern France. Wissembourg was a sub-prefecture of the department until 2015. The name ''Wissembourg'' ...
.


After World War II

After the war, the French re-manned the line and undertook some modifications. With the advent of French
nuclear weapons A nuclear weapon is an explosive device that derives its destructive force from nuclear reactions, either nuclear fission, fission (fission or atomic bomb) or a combination of fission and nuclear fusion, fusion reactions (thermonuclear weap ...
in the early 1960s, the line became an expensive anachronism. Some of the larger ''ouvrages'' were converted to command centres. When France withdrew from
NATO The North Atlantic Treaty Organization (NATO ; , OTAN), also called the North Atlantic Alliance, is an intergovernmental organization, intergovernmental Transnationalism, transnational military alliance of 32 Member states of NATO, member s ...
's military component in 1966, much of the line was abandoned, with the NATO facilities turned back over to French forces and the rest of it auctioned off to the public or left to decay. A number of old fortifications have now been turned into
wine cellar A wine cellar is a storage room for wine in bottles or barrels, or more rarely in carboys, amphorae, or plastic containers. In an ''active'' wine cellar, important factors such as temperature and humidity are maintained by a climate control s ...
s, a mushroom farm, and even a
disco Disco is a music genre, genre of dance music and a subculture that emerged in the late 1960s from the United States' urban nightclub, nightlife, particularly in African Americans, African-American, Italian-Americans, Italian-American, LGBTQ ...
. Besides that, a few private houses are built atop some blockhouses.
Ouvrage Rochonvillers 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 ...
was retained by the
French Army The French Army, officially known as the Land Army (, , ), is the principal Army, land warfare force of France, and the largest component of the French Armed Forces; it is responsible to the Government of France, alongside the French Navy, Fren ...
as a command centre into the 1990s but was deactivated following the disappearance of the Soviet threat. Ouvrage Hochwald is the only facility in the main line that remains in active service as a hardened command facility for the
French Air Force The French Air and Space Force (, , ) is the air force, air and space force of the French Armed Forces. Formed in 1909 as the ("Aeronautical Service"), a service arm of the French Army, it became an independent military branch in 1934 as the Fr ...
known as Drachenbronn Airbase. In 1968, when scouting locations for '' On Her Majesty's Secret Service'', producer
Harry Saltzman Herschel "Harry" Saltzman (; – ) was a Canadian theatre and film producer. He is best remembered for co-producing the first nine of the ''James Bond'' film series with Albert R. Broccoli. Apart from a ten-year stint living in St. Petersbu ...
used his French contacts to gain permission to use portions of the Maginot Line as SPECTRE headquarters in the film. Saltzman provided
art director Art director is a title for a variety of similar job functions in theater, advertising, marketing, publishing, fashion, live-action and animated film and television, the Internet, and video games. It is the charge of a sole art director to supe ...
Syd Cain with a tour of the complex. Still, Cain said that the location would be challenging to light and film inside and that artificial sets could be constructed at the studios for a fraction of the cost. The idea was shelved.


Postwar assessment

In analysing the Maginot Line, Ariel Ilan Roth summarised its main purpose: it was not "as popular myth would later have it, to make France invulnerable", but it was constructed to make the appeal of flanking the French "far outweigh the appeal of attacking them head on". J.E. Kaufmann and H.W. Kaufmann added that before construction in October 1927, the Superior Council of War adopted the final design for the line and identified that one of the main missions would be to deter a German cross-border assault with only minimal force to allow "the army time to mobilise." In addition, the French envisioned that the Germans would conduct a repeat of their First World War battle plan to flank the defences and drew up their overall strategy with that in mind. Julian Jackson highlighted one of the line's roles was to facilitate that strategy by "free ngmanpower for offensive operations elsewhere... and to protect the forces of manoeuvre"; the latter included a more mechanised and modernised military, which would advance into Belgium and engage the German main thrust flanking the line. In support, Roth commented that the French strategy envisioned one of two possibilities by advancing into Belgium: "either there would be a decisive battle in which France might win, or, more likely, a front would develop and stabilise". The latter meant the next war's destructive consequences would not take place on French soil. Postwar assessment of whether the Maginot Line served its purpose has been mixed. Its enormous cost and its failure to prevent German forces from invading France have caused journalists and political commentators to remain divided on whether the line was worthwhile. The historian Clayton Donnell commented, "If one believes the Maginot Line was built for the primary purpose of stopping a German invasion of France, most will consider it a massive failure and a waste of money... in reality, the line was not built to be the ultimate saviour of France". Donnell argued that the primary purpose of "prevent nga concerted attack on France through the traditional invasion routes and to permit time for the mobilisation of troops... was fulfilled", as was the French strategy of forcing the Germans to enter Belgium, which ideally would have allowed "the French to fight on favourable terrain". However, he noted that the French failed to use the line as the basis for an offensive. Marc Romanych and Martin Rupp highlight that "poor decisions and missed opportunities" plagued the line and point to its purpose of conserving manpower: "about 20 percent of rance'sfield divisions remained inactive along the Maginot Line". Belgium was overrun, and British and French forces evacuated at Dunkirk. They argue had those troops been moved north, "it is possible that Heeresgruppe A's advance could have been blunted, giving time for Groupe d'armees 1 to reorganise". Kaufmann and Kaufmann commented, "When all is said and done, the Maginot Line did not fail to accomplish its original mission... it provided a shield that bought time for the army to mobilise... ndconcentrate its best troops along the Belgian border to engage the enemy." The psychological factor of the Maginot Line has also been discussed. Its construction created a false sense of security, which was widely believed by the French population. Kaufmann and Kaufmann comment that it was an unintended consequence of André Maginot's efforts to "focus the public's attention on the work being done, emphasising the role and nature of the line". That resulted in "the media exaggerating their descriptions by turning the line into an impregnable fortified position that would seal the frontier". The false sense of security contributed "to the development of the "Maginot mentality". Jackson commented that "it has often been alleged that the Maginot Line contributed to France's defeat by making the military too complacent and defence-minded. Such accusations are unfounded". Historians have pointed to numerous reasons for the French defeat: faulty strategy and doctrine, dispersion of forces, the loss of command and control, poor communications, faulty intelligence that provided excessive German numbers, the slow nature of the French response to the German penetration of the Ardennes and a failure to understand the nature and speed of the German doctrine. More seriously, historians have noted rather than the Germans doing what the French had envisioned, the French played into the Germans' hand, culminating in their defeat. When the French Army failed in Belgium, the Maginot Line covered their retreat. Romanych and Rupp indicate that except for the loss of several insignificant fortifications from insufficient defending troops, the actual fortifications and troops "withstood the test of battle", repulsed numerous attacks, and "withstood intense aerial and artillery bombardment". Kaufmann and Kaufmann point to the Maginot Line along the Italian border, which "demonstrated the effectiveness of the fortifications... when properly employed".


Cultural impact

The term "''Maginot Line''" has become a part of the English language: "America's Maginot Line" was the title used for an '' Atlantic Magazine'' article about America's military bases in Asia. The article portrayed vulnerability by showing a rocket being transported through a marshy area atop an ox. ''New York Times'' headlined "Maginot Line in the Sky" in 2000 and "A New Maginot Line" in 2001. It was also frequently referenced in wartime films, notably ''Thunder Rock'', '' The Major and the Minor'' (albeit as a comedic metaphor) and ''
Passage to Marseille ''Passage to Marseille'', also known as ''Message to Marseille'', is a 1944 American war film made by Warner Brothers, directed by Michael Curtiz. The screenplay was by Casey Robinson and Jack Moffitt (screenwriter), Jack Moffitt from the novel ...
''. Somewhat like " line in the sand" it is also used in non-military situations, as in "Reagan's budgetary Maginot Line." Canadian singer-songwriter Geoff Berner has a song called "Maginot Line" on his album ''We Shall Not'', detailing the debacle.


See also

*
Atlantic Wall The Atlantic Wall () was an extensive system of coastal defence and fortification, coastal defences and fortifications built by Nazi Germany between 1942 and 1944 along the coast of continental Europe and Scandinavia as a defense (military), d ...
* Bar Lev Line *
British hardened field defences of World War II British hardened field defences of World War II were small fortified structures constructed as a part of British anti-invasion preparations of World War II, British anti-invasion preparations. They were popularly known as ''Pillbox (military), ...
* Ceintures de Lyon * Commission for Organising the Fortified Regions (CORF) * Çakmak Line *
Czechoslovak border fortifications First Republic of Czechoslovakia, Czechoslovakia built a system of border fortifications as well as some fortified defensive lines inland, from 1935 to 1938 as a defensive countermeasure against the rising threat of Nazi Germany. The objective of ...
*
K-W Line The Koningshooikt–Wavre Line, abbreviated to KW Line (; ) and often known as the Dyle Line after the Dijle (Dyle) river, was a -long fortified line of defence prepared by the Belgian Army between Koningshooikt ( Province of Antwerp) and Wav ...
– a contemporary
defence line Defense or defence may refer to: Tactical, martial, and political acts or groups * Defense (military), forces primarily intended for warfare * Civil defense, the organizing of civilians to deal with emergencies or enemy attacks * Defense industr ...
in Belgium * List of Alpine Line ouvrages (works) *
List of Maginot Line ouvrages Here is the list of all ''ouvrages'' of the Maginot Line, organized by sector and type of fortification. ''Ouvrage'' translates as "works" in English: published documents in both English and French refer to these fortifications in this manner, r ...
(works) * Metaxas Line * Rupnik Line *
Siegfried Line The Siegfried Line, known in German as the ''Westwall (= western bulwark)'', was a German defensive line built during the late 1930s. Started in 1936, opposite the French Maginot Line, it stretched more than from Kleve on the border with the ...


Notes

Footnotes Citations


References

Books * * * * * Donnell, Clayton. ''The Battle for the Maginot Line, 1940'' (Pen and Sword, 2017). * * * * * * * * * * * * Journals * * * *


Further reading

* Mary, Jean-Yves; Hohnadel, Alain; Sicard, Jacques. ''Hommes et Ouvrages de la Ligne Maginot, Tome 1.'' (Men and Works of the Maginot Line). Paris, Histoire & Collections, 2001. . * Mary, Jean-Yves; Hohnadel, Alain; Sicard, Jacques. ''Hommes et Ouvrages de la Ligne Maginot, Tome 2.'' Paris, Histoire & Collections, 2003. . * Mary, Jean-Yves; Hohnadel, Alain; Sicard, Jacques. ''Hommes et Ouvrages de la Ligne Maginot, Tome 3.'' Paris, Histoire & Collections, 2003. . * Mary, Jean-Yves; Hohnadel, Alain; Sicard, Jacques. ''Hommes et Ouvrages de la Ligne Maginot, Tome 4 – La fortification alpine.'' Paris, Histoire & Collections, 2009. . * Mary, Jean-Yves; Hohnadel, Alain; Sicard, Jacques. ''Hommes et Ouvrages de la Ligne Maginot, Tome 5.'' Paris, Histoire & Collections, 2009. . * * Kaufmann, J.E., Kaufmann, H.W., Jancovič-Potočnik, A. and Lang, P. ''The Maginot Line: History and Guide'', Pen and Sword, 2011. * Roger Bruge. ''Les Combattants du 18 juin'' ** T.1 : ''Le Sang versé'', Fayard, 1982 ** T.2 : ''Les derniers feux'', Fayard, 1985 ** T.3 : ''L'armée broyée'', Fayard, 1987 ** T.4 : ''Le cessez-le-feu'', Fayard, 1988 ** T.5 : ''La fin des généraux'', Fayard, 1989 * Roger Bruge. ''Histoire de la ligne Maginot'' ** T.1 : ''Faites sauter la ligne Maginot !'', Fayard, 1973 ** T.2 : ''On a livré la ligne Maginot'', Fayard, 1975 ** T.3 : ''Offensive sur le Rhin'', Fayard, 1977


External links

*
The Maginot Line (French/English/German/Italian)
*
Fortress of Schoenenbourg, (French/English/German/Italian)

The U.S. Army vs. The Maginot Line by Bryan J. Dickerson


*
Armament of Maginot Line
(''Czech only'') {{Authority control World War II defensive lines Historic defensive lines Tunnel warfare Separation barriers 20th-century fortifications Military installations established in 1930 1930 establishments in France