Fortified Sector of the Crusnes
Encyclopedia
The Fortified Sector of the Crusnes (Secteur Fortifiée de la Crusnes) was the French military organization that in 1940 controlled the section of the Maginot Line
Maginot Line
The Maginot Line , named after the French Minister of War André Maginot, was a line of concrete fortifications, tank obstacles, artillery casemates, machine gun posts, and other defences, which France constructed along its borders with Germany and Italy, in light of its experience in World War I,...

 extending eastwards approximately 28 kilometres (17.4 mi) from Longuyon
Longuyon
Longuyon is a commune in the Meurthe-et-Moselle department in north-eastern France.The apartment blocks on the southwestern edge of town, still called "La Cité Canadienne", were home to Royal Canadian Air Force staff and their families in the 1950s and 1960s, when the RCAF had an airbase at nearby...

. The sector roughly follows the valley of the Crusnes river. Crucially, the trace of the Maginot Line in the Crusnes sector is about 7 kilometres (4.3 mi) behind the industrial city of Longwy
Longwy
Longwy is a commune in the Meurthe-et-Moselle department in north-eastern France.The inhabitants are known as Longoviciens.-Economy:Longwy has historically been an industrial center of the Lorraine iron mining district. The town is known for its artistic glazed pottery.-History:Longwy initially...

 which sits directly against the French
France
The French Republic , The French Republic , The French Republic , (commonly known as France , is a unitary semi-presidential republic in Western Europe with several overseas territories and islands located on other continents and in the Indian, Pacific, and Atlantic oceans. Metropolitan France...

 borders with Belgium
Belgium
Belgium , officially the Kingdom of Belgium, is a federal state in Western Europe. It is a founding member of the European Union and hosts the EU's headquarters, and those of several other major international organisations such as NATO.Belgium is also a member of, or affiliated to, many...

 and Luxembourg
Luxembourg
Luxembourg , officially the Grand Duchy of Luxembourg , is a landlocked country in western Europe, bordered by Belgium, France, and Germany. It has two principal regions: the Oesling in the North as part of the Ardennes massif, and the Gutland in the south...

. The Crusnes sector was one of the strongest Maginot Line sectors. It was attacked in 1940 by German forces in the Battle of France
Battle of France
In the Second World War, the Battle of France was the German invasion of France and the Low Countries, beginning on 10 May 1940, which ended the Phoney War. The battle consisted of two main operations. In the first, Fall Gelb , German armoured units pushed through the Ardennes, to cut off and...

. 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 positions and their garrisons finally surrendered on 27 June 1940. Following the war many positions were reactivated for use during the Cold War
Cold War
The Cold War was the continuing state from roughly 1946 to 1991 of political conflict, military tension, proxy wars, and economic competition between the Communist World—primarily the Soviet Union and its satellite states and allies—and the powers of the Western world, primarily the United States...

. Three locations are now preserved and open to the public, with a fourth position under restoration.

Concept and organization

The sector was originally planned to protect Longwy, with a pronounced bow to the north comprising seven ouvrages replacing all but Bréhain
Ouvrage Brehain
Ouvrage Bréhain is part of the Fortified Sector of the Crusnes of the Maginot Line, located near the community of Bréhain-la-Ville in the Meurthe-et-Moselle département of France. Bréhain is flanked by petits ouvrages Mauvais Bois and Aumetz. The gros ouvrage was equipped with long-range...

. In order from west to east, these were to be the Ouvrage du Bois de Piepe, Ouvrage de Villers-la-Chévre, Ouvrage de Soxey, Ouvrage de la Rédoute, Ouvrage de Longwy, Ouvrage de Ratentout and the Ouvrage de Verbusch. This line was proposed on 24 June 1930, but was replaced by the more southerly line on 2 August 1930. The main line of fortifications would have been within one or two kilometers of the frontier, much farther forward than any other place on the Line, and in contradiction to the Maginot Line's concept of defence in depth
Defence in depth
Defence in depth is a military strategy; it seeks to delay rather than prevent the advance of an attacker, buying time and causing additional casualties by yielding space...

. Construction began in most places in 1930, and was largely complete by 1935. Several locations had additional phases planned. Petit ouvrages Aumetz, Bois-du-Four and Mauvais-Bois were all planned to be expanded into gros ouvrages after completion of the initial plan. Other planned but unconstructed ouvrages included the Ouvrage de Bouillon and the Ouvrage de la Cote 143 (Hill 143), casualties of realignment. The Ouvrage de Rafour was planned to anchor the west end of the line behind Longuyon, but was canceled and replaced by a series of blockhouses as a cost-saving measure.

The Crusnes sector was part of the larger Fortified Region of Metz
Fortified Region of Metz
The Fortified Region of Metz comprised the central and most heavily-fortified portion of the Maginot Line. The region was established in 1926 as a military organization for the French fortifications along the frontier with Luxembourg and Germany to the east of Longuyon in northeastern France,...

, a strongly defended area between the Ardennes
Ardennes
The Ardennes is a region of extensive forests, rolling hills and ridges formed within the Givetian Ardennes mountain range, primarily in Belgium and Luxembourg, but stretching into France , and geologically into the Eifel...

 to the west and the Sarre valley to the east. The Metz region was more important during the planning and construction phase of the Maginot Line than it was in the operational phase of the Line, when the sectors assumed prominence. The Fortified Region of Metz was dissolved as a military organization on 18 March 1940. The SF (Secteur Fortifiée) Crusnes was itself dissolved in 1940, becoming the 42nd Fortress Corps (42e Corps d'Armee de Forteresse (CAF)).

Command

The Crusnes sector was under the overall command of the French 3rd Army
Third Army (France)
The Third Army was a Field army of the French Army, which fought during World War I and World War II.-World War I:*General Ruffey *General Sarrail *General Humbert...

, headquartered at Fort Jeanne d'Arc
Fort Jeanne d'Arc
Fort Jeanne d'Arc is a fortification located to the west of Metz in the Moselle department of France. It was built by Germany to the west of the town of Rozérieulles in the early 20th century as part of the third and final group of Metz fortifications...

 at Metz
Metz
Metz is a city in the northeast of France located at the confluence of the Moselle and the Seille rivers.Metz is the capital of the Lorraine region and prefecture of the Moselle department. Located near the tripoint along the junction of France, Germany, and Luxembourg, Metz forms a central place...

, under the command of General Charles Condé, which was in turn part of Army Group 2 under General André-Gaston Prételat
André-Gaston Prételat
André-Gaston Prételat was a general in the French Army.-1910-1918:His first post, from 1910 to 1912, was as military attaché to Tangier...

. The 42nd CAF was commanded by General Sivot, then General Renondeau from 27 May 1940. As the SF Crusnes, it was commanded by Colonel Miserey from 15 September 1939. The command post was at Briey. The interval troops, the army formations that were to provide the mobile defense for the sector, to support and be supported by the fixed defenses, were under the command of the 24th Corps (24e Corps d'Armee), General Fougère, commander. The 24th Corps was in turn made up of the 20th, 51st and 58th Infantry Divisions. Artillery support for the sector was provided by the 152nd Position Artillery Regiment (Régiment d'Artillerie de Position (RAP)), which controlled both fixed and mobile artillery, commanded by Lt. Colonel Jacob. The 20th ID was made up of Class A reservists, while the 51st and 58th IDs were Class B reserve formations, not considered suitable for significant combat.

Description

The sector includes, in order from west to east, the following major fortified positions, together with the most significant casemates and infantry shelters in each sub-sector:

Sub-sector of Arrancy

149th Fortress Infantry Regiment (149e Régiment d'Infanterie de Forteresse (RIF)), Lt. Colonel Beaupuis, command post at Calvaire d'Arrancy
  • Ouvrage Ferme Chappy
    Ouvrage Ferme Chappy
    Ouvrage Ferme Chappy is a petit ouvrage of the Maginot Line in northeastern France. It is located at the western end of the Fortified Sector of the Crusnes near Longuyon in the Meurthe-et-Moselle département, facing Belgium. The gros ouvrage Fermont borders Ferme Chappy's artillery coverage to the...

    , petit ouvrage A1 of two combat blocks
  • Ouvrage Fermont
    Ouvrage Fermont
    Ouvrage Fermont is a gros ouvrage of the Maginot Line, part of the Fortified Sector of the Crusnes in northeastern France, near the community of Montigny-sur-Chiers. It is located near the commune of Montigny-sur-Chiers, between the petit ouvrage Ferme Chappy and the gros ouvrage Latiremont...

    , gros ouvrage A2 of seven combat blocks and two entry blocks
  • Ouvrage Latiremont
    Ouvrage Latiremont
    Ouvrage Latiremont is a gros ouvrage of the Maginot Line, located in the Fortified Sector of the Crusnes, sub-sector of Arrancy. It lies between the gros ouvrage Fermont and the petit ouvrage Mauvais Bois, facing Belgium. The village of Doncourt-Cités is nearby. Latiremont was active in 1939-1940,...

    , gros ouvrage A3 of six combat blocks and two entry blocks

Peacetime barracks and support, in addition to a caserne at Longwy:
  • Caserne Lamy (Longuyon)
  • Casernement de Doncourt

Sub-sector of Morfortaine

139th Fortress Infantry Regiment (139e Régiment d'Infanterie de Forteresse (RIF)), Colonel Ritter, command post at Ville-au-Montois
  • Ouvrage Mauvais-Bois, petit ouvrage A4 of three combat blocks
  • Ouvrage Bois-du-Four, petit ouvrage A5 with a single combat block and no underground passages

Peacetime barracks and support:
  • Casernement de Morfortaine

Sub-sector of Aumetz

128th Fortress Infantry Regiment (128e Régiment d'Infanterie de Forteresse (RIF)), Colonel Roulin, command post at Serrouville
  • Ouvrage Bréhain
    Ouvrage Brehain
    Ouvrage Bréhain is part of the Fortified Sector of the Crusnes of the Maginot Line, located near the community of Bréhain-la-Ville in the Meurthe-et-Moselle département of France. Bréhain is flanked by petits ouvrages Mauvais Bois and Aumetz. The gros ouvrage was equipped with long-range...

    , gros ouvrage A6 of eight combat blocks and two entry blocks
  • Ouvrage Aumetz
    Ouvrage Aumetz
    Ouvrage Aumetz is a small work, or petit ouvrage of the Maginot Line. It is part of the Fortified Sector of the Crusnes and is located near the community of Aumetz in the Moselle département of France. The petit ouvrage flanked by the gros ouvrages Bréhain and Rochonvillers, all facing the...

    , petit ouvrage A7 of three combat blocks

Peacetime barracks and support:
  • Casernement d'Errouville
  • Casernement de Ludelange

Battle of France

In February 1940 General Condé decided to protect the exposed city of Longwy, forming the Position Avancée de Longwy (PAL), using a combination of hastily-built blockhouses and field units. A series of anti-tank obstacles were built between Longwy and the border, defended by elements of the 58th and 51st Infantry Divisions. Artillery cover was provided by the 75mm gun turret of Ouvrage Fermont
Ouvrage Fermont
Ouvrage Fermont is a gros ouvrage of the Maginot Line, part of the Fortified Sector of the Crusnes in northeastern France, near the community of Montigny-sur-Chiers. It is located near the commune of Montigny-sur-Chiers, between the petit ouvrage Ferme Chappy and the gros ouvrage Latiremont...

, which could cover all of the area except Longwy itself. Two 75mm gun casemates were built between Mexy and Haucourt to cover this gap.

Troops of the German 17th Infantry Division attacked the Longwy position beginning 11 May 1940. The Germans quickly surrounded the city, with German forces in view of the main Maginot Line. The situation declined over the next two days, the reserve divisions performing poorly, and on the 13th General Condé ordered the evacuation of the PAL. The French 3rd Light Cavalry Division (3e Division Légère de Cavalerie (DLC)) advanced into Luxembourg in an attempt to spoil the attack before it was ordered back to French territory. The division, composed of one motorized regiment and two of horse, attempted to disrupt the German advance into the Longwy salient, but did not attack in sufficient concentration to accomplish much. Condé was content to reorganize behind the Maginot Line. His passivity has been criticized; the abandonment of Longwy presented a missed opportunity for a counterattack by French forces.

By June, faced with the progressive collapse of the French First Army to the west, the interval troops began to pull back to avoid being encircled behind the Maginot Line. Measure A, issued by 3rd Army headquarters, called for the withdrawal of the interval troops on 15 June, protected by the casemates and ouvrages. Measure B was the withdrawal of artillery forces from the intervals late that day and into the 16th, protected by the ouvrages. Measure C was the withdrawal of all but skeleton forces from the fortifications. The forces left behind were to withdraw themselves by the 18th after sabotaging all equipment and weapons. As the withdrawal was developing, the Germans planned to pierce the Line between Mauvais-Bois and Bois-du-Four on the 14th, but called off the operation. At the same time, the garrisons of the Fortified Sector of Montmédy
Fortified Sector of Montmédy
The Fortified Sector of Montmédy was the French military organization that in 1940 controlled the section of the Maginot Line between Sedan and Longuyon, a distance of about . The sector sector was not as strongly defended as other sections of the Maginot Line, facing the southern Ardennes region...

 evacuated ahead of schedule, leaving the Crusnes sector's western flank exposed.
Ouvrage Ferme Chappy
Ouvrage Ferme Chappy
Ouvrage Ferme Chappy is a petit ouvrage of the Maginot Line in northeastern France. It is located at the western end of the Fortified Sector of the Crusnes near Longuyon in the Meurthe-et-Moselle département, facing Belgium. The gros ouvrage Fermont borders Ferme Chappy's artillery coverage to the...

, a two-block petit ouvrage, was now the westernmost extant outpost of the Maginot Line. While it was not in itself strong, it was well within the ranges of the guns of Fermont
Ouvrage Fermont
Ouvrage Fermont is a gros ouvrage of the Maginot Line, part of the Fortified Sector of the Crusnes in northeastern France, near the community of Montigny-sur-Chiers. It is located near the commune of Montigny-sur-Chiers, between the petit ouvrage Ferme Chappy and the gros ouvrage Latiremont...

 and Latiremont
Ouvrage Latiremont
Ouvrage Latiremont is a gros ouvrage of the Maginot Line, located in the Fortified Sector of the Crusnes, sub-sector of Arrancy. It lies between the gros ouvrage Fermont and the petit ouvrage Mauvais Bois, facing Belgium. The village of Doncourt-Cités is nearby. Latiremont was active in 1939-1940,...

. Although the interval troops had escaped, by the 17th the Crusnes sector had been enveloped by the Germans from the east and west. Retreat was impossible. Through the day on 17 June, two 8.89cm anti-tank guns of the German 183rd Infantry Division fired at Fermont's Block 4, breaching it after 160 rounds, but stopping, unaware that they had nearly succeeded in knocking out the position. The damage was repaired overnight. The German 161st Infantry Division took over the next day. Under the impression that morale in the ouvrages was low, the division's commander, Lieutenant Gneral Hermann Wilck ordered an attack on Ferme-Chappy and Fermont for 21 June. The assaults failed under fire from the two ouvrages and supporting fire from Latiremont. Casualties were 46 German dead and 251 wounded, with two French dead, one each at Fermont and Ferme-Chappy. The Germans were allowed to retrieve their dead and wounded under a flag of truce. An assault against Latiremont was cancelled when the army group commander, General Wilhelm Ritter von Leeb
Wilhelm Ritter von Leeb
Wilhelm Josef Franz Ritter von Leeb was a German Field Marshal during World War II. - Youth :...

 ordered all attacks against Maginot fortifications to stop, as a waste of resources. Action between the 21st and the date of the June 25 armistice was limited to sporadic shelling and, on the French side, to firing off ammunition at the Germans before it could be captured.

Other German formations carried out harassing attacks on Aumetz and Bréhain, as well as on individual casemates. Moving behind the French lines, the Germans were able to cut telephone lines at easily-identifiable junctions, leaving the ouvrages to radio communications. Following the armistice, brief negotiations settled on a formal surrender for the Crusnes garrisons on 27 June. On the morning of the 27th, the French forces marched out of their positions and returned to their peacetime barracks at Doncourt, Morfontaine and Errouville. All positions were left intact for the Germans, with the exception of Aumetz, sabotaged at the order of its commander, Lieutenant Braun.

In 1941 Fermont, along with positions in other sectors, was used to produce a propaganda film about the fall of the Maginot Line to the Germans. Bombardments were staged to make it look like the gros ouvrage had fallen. In reality, no gros ouvrage was captured by German attack.

Môle de Crusnes

Following World War II, the French military reclaimed the Maginot Line with the aim of renovating and improving it against a possible attack by Warsaw Pact
Warsaw Pact
The Warsaw Treaty Organization of Friendship, Cooperation, and Mutual Assistance , or more commonly referred to as the Warsaw Pact, was a mutual defense treaty subscribed to by eight communist states in Eastern Europe...

 forces. The strongest positions, Fermont and Latiremont
Ouvrage Latiremont
Ouvrage Latiremont is a gros ouvrage of the Maginot Line, located in the Fortified Sector of the Crusnes, sub-sector of Arrancy. It lies between the gros ouvrage Fermont and the petit ouvrage Mauvais Bois, facing Belgium. The village of Doncourt-Cités is nearby. Latiremont was active in 1939-1940,...

, were designated the môle de Crusnes ("breakwater") in 1951 and were placed back into service after a period of rehabilitation. Bréhain
Ouvrage Brehain
Ouvrage Bréhain is part of the Fortified Sector of the Crusnes of the Maginot Line, located near the community of Bréhain-la-Ville in the Meurthe-et-Moselle département of France. Bréhain is flanked by petits ouvrages Mauvais Bois and Aumetz. The gros ouvrage was equipped with long-range...

 received much the same treatment, but was attached to the môle de Rochonvillers farther east. Lesser positions, such as Mauvais-Bois, Bois-du-Four and Aumetz
Ouvrage Aumetz
Ouvrage Aumetz is a small work, or petit ouvrage of the Maginot Line. It is part of the Fortified Sector of the Crusnes and is located near the community of Aumetz in the Moselle département of France. The petit ouvrage flanked by the gros ouvrages Bréhain and Rochonvillers, all facing the...

, were repaired and kept as government property, but were not formally designated as places of defense. After the establishment of the French nuclear strike force
France and weapons of mass destruction
France is known to have an arsenal of weapons of mass destruction. France is one of the five "Nuclear Weapons States" under the Nuclear Non-Proliferation Treaty; but is not known to possess or develop any chemical or biological weapons. France was the fourth country to test an independently...

, the importance of the Line declined, and maintenance ceased in the 1970s, with most of the casemates and petit ouvrages sold to the public.

Present status

Fermont, Bois-du-Four and Casemate C2 of Bréhain are operated as museums and are open to the public. The remainder are either privately owned or are military property, abandoned and sealed. The Casemate de Morfortaine may be visited by arrangement with the owner, who seeks to restore it.

External links

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