The Border Forts of Czechoslovakia Against Nazi Germany

The Maginot line – a line of forts running along the French border with Italy, Switzerland, Germany and Belgium – is a widely known example of military engineering from the inter-war period (see this chapter). The adopted construction technique, based on reinforced concrete pillboxes with walls several feet thick, half interred to decrease visibility from above, field cannons and anti-tank defensive guns, witnesses the great consideration given to tanks and aircraft as attack weapons.

Due to the fast movements typical to the new strategy of the German army since the beginning of WWII, the Maginot line is mainly remembered for having not been involved in any major action, and having being largely bypassed. As a matter of fact, the German opted for a bypass also because the line was in place, so it was not as ineffective as it is often thought.

What is possibly even less known is that similar defensive lines were built in earnest in other European countries, before and even during WWII, after the Maginot line had failed to stop the invading German army. The enormous Salpa line, built by Finland against the Soviet Union, was probably the last and most effective to be completed (see this chapter). The Stalin line, prepared by the Soviets against Germany in Belarus, is another example. Another country who invested much in this type of deterrent was Czechoslovakia.

To understand the drivers of the design of the huge line of forts envisaged by the Czechoslovakian government of the mid-1930s, one should take a look at a map of Europe from the time. After the defeat of WWI Germany had managed to keep significant parts of todays Poland. The border between Germany and Poland ran close to Gdansk – aka Danzig in German -, and the province of Lower Silesia with the town of Wroclav – Breslau in German – were undisputed German territory. This means that todays border between the Czech Republic and Poland used to be actually a border between Czechoslovakia and Germany in the years before WWII.

With the turmoil preceding the infamous Munich Agreement and Nazi Germany claiming the right to control ‘Sudetenland’ – a large part of the peripheral territories of todays Czech Republic – in 1937 the Czechoslovakian government quickly started the construction of a huge system of forts to protect the border.

The concept was pretty similar to that of the Maginot line, with extensive underground tunnels to shelter soldiers and ammos, facing to the surface with reinforced concrete bunkers with different purposes, including observation, artillery shelling with field cannons, mutual protection with short range anti-tank cannons, machine guns and grenade-throwing tubes. There were also bunkers for accessing the tunnel system with resupply. About 10’000 light fortifications were actually built, more than 200 heavy fortified positions and a handful of heavy artillery positions.

The geopolitical situation in Europe got worse quickly in 1938, with the annexation of Austria in spring and finally the Munich Agreement, which caused the dissolution of Czechoslovakia. As a result of this internationally approved de facto German invasion, the works on the defense line were halted by the Wehrmacht. A relevant part of the hard construction had been completed, but most of the bunkers were still unarmed or lacked some software – air filters, ammo supplies, everyday items for the troops, etc. – and were not serviceable.

Most of the ironworks, including especially all heavy-metal turrets, were salvaged by the Germans. Some of the cannons found their way to the Atlantic Wall. The most massive concrete bunkers were used to test new weapons. As a result, the majority of the most sizable structures are still today in a partly damaged shape.

Some of the bunkers came to life again in the 1970s, when re-founded Czechoslovakia, that time a satellite country of the USSR living under a repressive and hard communist dictatorship, started a low-paced conversion of some of the structures into nuclear shelters for top ranks of the military and political hierarchies.

Notwithstanding these incidents, todays Czech Republic is duly proud of the significant work which was carried out in the difficult late Thirties. Very much was done for the little time available, and the quality of the design and construction is remarkable. While most of the sites are open only rarely, there are some where you can step inside and enjoy an interesting visit. This chapter covers with photographs and text five larger fortified complexes along this anti-German defensive line, from a two-days visit taken in August 2018.

Map

The following map shows the highlights of each of the five sites listed in this chapter. Please zoom in for greater detail. For the Bouda fort I could not spot and pinpoint on the map all the pillboxes you can easily visit from the outside – this are covered by vegetation.

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Sights

Stachelberg

The Stachelberg site is located about three miles north of the small city of Trutnov. The fort should have consisted of a main entrance and peripheral shooting positions, some of them linked by underground tunnels, to defend the area of the Giant Mountains. Construction works were terminated much before completion, so the surface bunkers forming the ensemble are actually not connected. Yet the major installation, a bulky infantry positions with provision for anti-tank artillery, provides access to an extensive system of half-prepared tunnels, which gives you a clear picture of the size and capacity of the complex.

The site is open to the public, and the ticket office can be found right inside this huge major bunker. From the outside, the volume of this pillbox is particularly stunning. Also interesting are the anti-tank obstacles, which used to be placed along the border line and between the forts, to trap invading columns in a position where anti-tank guns could be most effective.

This multi-level bunker is also place for a little museum on the fortifications, mainly based on explicative panels and scaled models of weapons and of the entire bunker complex. It covers the history of the fortifications, and explains most technical features of their construction. There are no weapons or other software – they were either not installed before the construction works were stopped, or salvaged by the Germans.

The tunnels can be visited on a guided tour only, starting from inside the main bunker with a descent of several tens of feet along a flight of stairs, originally made at the time of construction. The tunnels unfold on the sides of a major, perfectly straight initial track. Some of the lateral halls, intended to store ammos as well as for sleeping the troops, are very large and close to completion, whereas others are just sketched.

The tunnels were dug in the rock with the help of explosives. The next step in the construction works would have been a layer of concrete from the pavement up to the ceiling of the tunnels. This is present today only close to the entry point, at the bottom of the access stairs.

There are at least other five smaller pillboxes which have been preserved to some extent in the Stachelberg complex. They are accessible with different timetables, and do not provide access to the underground – by design, some of them should have.

One of the pillboxes has been colored in a very bright camouflage. I could not find out whether this used to be the standard, but it looks pretty unusual and not really mimetic… There are also refurbished connecting trenches between the smaller bunkers.

The concrete base of a never built bunker can be found not far from the parking area.

Getting there and moving around

Getting close to the complex is really easy, the area is very scenic and a popular destination skiing, and for nature trail hiking in summer. There is a parking on road N.300 from where the museum-fort can be reached with an almost flat, 0.3 miles track.

The complex can be toured on the outside without restrictions. The main bunker has opening times, and the underground part can be toured only with a guide. The guide speaks Czech, but you are provided a leaflet with explanations in English, upon request. The tour takes about 30 minutes, and is offered on a regular basis, with several entries per day. They warn you about the inside temperature, but I found it pretty easy to bear with normal summer clothes. Website here, but you will need some Google translation to find the info you need.

Voda, Brezinka and Lom

These three forts are actually parts of the same system, built on the eastern end of the town of Nachod-Beloves, the major center in a local valley ending in Poland. Three items in the complex are typically accessible to the public.

The one closest to the town, on the bottom of the valley, is the Voda bunker. This is very convenient to reach, and is basically composed of a preserved typical infantry pillbox with provision for machine guns. The bunker has been painted in a credible camouflage. On one end it is possible to note the damage inflicted by the Germans, when they took out the metal observation turret. This kind of treatment – and damage – can be observed on a great many bunkers of the line.

Inside, the bunker has been turned into a local museum on the armed forces. There were border guards operating in the area, involved in skirmishes before and after the end of the war. The weapons originally intended for the fort are not in place, but there is an interesting collection of weapons, uniforms, motorcycles and other gear from the army corps operating around there over the years.

The Brezinka fort is possibly one of the most famous of the entire defensive line. The reason for that is that it was recently restored to look like it should have looked, if only it was completed back in the late Thirties. In the restoration process, weapons and system parts from other locations in todays Czech Republic were brought to the Brezinka site.

The visit of the interiors is really exceptional, even compared to the forts of the other defensive lines in Europe. The fort really looks like it could be put in operation today!

The first part of the visit of this two-levels artillery bunker will take you downstairs, where you can find the sleeping quarters for the troops with a food storage.

Close by, there are two rooms for the electrical generator and for the ventilation system. Here you can see the electrical compressor, with backup manual handles, and the huge air filters. These are multi-stage filters, where each stage was designed to stop different poisonous components in the air. The system is working, so you are given a demonstration of the compressor – interesting to get an impression of the incredible noise this system produced!

On the same floor there is also a telegraph system, which was used to communicate with other bunkers in the complex in case of failure of the telephone link. This system was capable of transmitting Morse signals to the other pillboxes next to it, projecting the signal into the ground and using it as a medium – there were no cables! This allowed it to work even if a direct electrical link was lost.

The upper floor is even more surprising, cause basically all weapons have been restored to their original positions. The Brezinka bunker featured two main firing chambers. The one pointing uphill features two heavy 7.92 mm machine guns Zbrojovka Brno Mark 1937, a very widespread and reliable weapon, with an operational range of 1’000-2’000 ft at 500-300 rounds per minute. These were used to target infantry movements along the border line, pinpointed by anti-tank obstacles. Fire direction was from the observation turret or via an optical aim system. The latter was extremely precise, but more expensive than the machine gun!

In presence of an impenetrable smoke curtain or at night, an open-loop aiming system could be used. This consisted of a board with a precise sketch of the view of the outside from the firing point, mounted on top of the machine gun. A calibrated needle pointer was used to align the machine gun with respect to the target, by simply pointing the needle on the intended target on the board!

The third machine gun is a light ZB vz. 26, a very popular light 7.92 mm machine gun. This was used for close defense of the fort access. There are also grenade throwing tubes for the same purpose.

The other firing chamber points downhill, and is supplied with a machine gun as in the first chamber, plus the assembly of an anti-tank cannon and another machine gun. The cannon is a 4.7 cm Skoda KPUV vz. 38, with an up to 1-mile range at 35 rounds per minute. It could pierce a 50 mm armor from 0.7 miles apart, and was a very effective weapon. This very cannon was already in place before the German invasion, and was taken by the Wehrmacht to the Atlantic Wall in Norway. It has been returned to its original location in recent times.

There are other two metal-reinforced embrasures in the bunker for other two ZB vz. 26s. On the same floor you can find a kitchenette and toilets for the troops, ammo storages, and two observation turrets. The latter feature a working movable floor, to allow tailoring to the height of the observer. The turrets were fitted with a periscope, and were used to direct fire. They weighed 21 tonnes each, and could withstand direct close fire from anti-tank guns!

Finally, the room of the commander and the telephone room – with an original machine from the Thirties – conclude the tour.

The Lom object, five minutes uphill with respect to the Brezinka fort, is another infantry bunker. It has not been refurbished to the level of Brezinka, but nonetheless it is used to showcase construction pieces, weapons and memorabilia from WWII years. The armored turret was taken away by the Germans.

Between the Brezinka and Lom bunkers you can find a section of anti-tank obstacles. The concrete base used to support them can be spotted in several places here and other sites of the defensive line.

Getting there and moving around

These bunkers, and especially Brezinka, are surely among the most interesting of the kind to visit, considering also their counterparts in France, Finland and Belarus.

The Voda site is easily accessible by car. The Brezinka and Lom bunkers cannot be reached by car. You can park on a street close to the trail-head and take the trail. Unfortunately, the road going uphill, albeit not uneven, is extremely steep and about 1 mile long. You should definitely take this into consideration when planning your excursion, even if you are physically well-trained. Very few beverages are available at the Lom site, which is five minutes farther uphill from Brezinka. Nothing is sold at Brezinka.

It is a pity they didn’t prepare a better access road, cause the site is surely worth a visit, and may appeal to the specialist and to the general public – especially children! – as well.

Only cash is accepted in all these sites. The Brezinka site is accessible only with guided tours. Tours were offered every 20 minutes in late August when I visited. You are given a detailed leaflet in English or German, in case you can’t speak Czech. The guided tour of Brezinka takes about 50 minutes.

The Lom site can be toured in 10 minutes, whereas the Voda bunker is worth a 20-30 minutes self-guided visit. Explanations are partly also in English and other languages in the Voda bunker.

Information on these three forts can be found from this website.

Hanicka

The Hanicka site features an extensive underground tunnel system, actually connecting the main entrance to some major peripheral forts. The ensemble includes one of the few most imposing firing units in the entire defensive line.

But what makes this site even more unique is the fact that, after having fallen into oblivion since the end of WWII, in the 1970s it was selected to be developed into a nuclear-proof governmental bunker – codenamed ‘Kahan’. The ensuing modifications altered greatly the appearance of the entrance bunker, and most of the systems you can see today in the underground part are actually dating from the 1980s.

The works on the conversion were carried out at a slow pace, and were actually not completed before the end of communism in Czechoslovakia, the collapse of the Czechoslovakian federation and the birth of the Czech Republic in the early 1990s. The bunker was soon opened to the public as a unique specimen of military building engineering from both WWII and the Cold War.

The tunnels can be be visited only with a guided tour. The original entrance to the tunnel, modified in the 1980s, is the starting point of the visit. The entrance to the bunker looked totally different before it was developed into a nuclear shelter. The modifications at the level of the entrance included the construction of a soft service building, with room for storages of trucks, armored vehicles and other material.

In the first hall giving access to the tunnels you can find weapons, communication systems, scale models of the site, maps and much more from both the ‘two lives’ of the bunker, in the 1930s and 1980s.

Access it through a thick, typical soviet nuclear-blast-proof gate. Inside, you see the nuclear-proof system allowed to seal a section of the entry tunnel close to the gate. The bunker was designed to allow long-term survival and operations for 300 people also in case of total insulation from the world outside.

A modern energy production system was put in place and can be seen together with water and gasoline tanks. The structure of the bunkers was not altered significantly, but the various systems date clearly from more recently than the Thirties.

There are also extensive sleeping quarters and a medical facility to the far end of the main tunnel, which was built in the side of a hill.

You finally come out in a former infantry bunker, reached climbing upstairs to the top of the hill. Here the embrasures and reinforcing panels of the firing chambers are still in place.

The next part of the visit will take you to some other smaller bunkers, visible only from the outside.

The visit ends in front on the major RS-79a bunker, a top of the line artillery bunker. This was provided with three embrasures for field guns. The size of this installation is really striking. You cannot visit inside this bunker.

It was somewhat damaged by weapons testing by the Germans, and never refurbished. You can see a nuclear-proof door substituting one of the original embrasures.

Back to the parking, it is possible to see from the outside an infantry bunker and examples of anti-tank barriers. This bunker is a rare example of a totally undamaged fort of the line – even the metal turrets are original and have been left in place by the Germans.

Getting there and moving around

The Hanicka complex can be explored outside with no restrictions, but the inside can be toured only with a Czech-speaking guide. They provide you a leaflet in English. The visit lasts about 60 minutes. Info on their website.

The entrance is via the original entrance bunker, modified in the 1980s. Reaching this point from the parking on road N.319 is a bit demanding, cause you need to walk on an unpaved road going uphill with a relevant grade for about 0.7 miles, then you have about another 0.7 miles walking on an easy, flat road. Differently from Brezinka (see above), they have a facility selling food, beverages and souvenirs close to the entrance. It’s a pity they just did not prepare a good road and a parking nearby the entrance.

Anyway, this site has much to offer and the visit is highly recommended, both inside and outside, for children and adults as well.

Bouda

The two nearby forts of Bouda and Hurka share a basically similar construction, and represent possibly the best examples of almost-complete forts in the defensive line. They are articulated around a straight tunnel, mined in the side of a mountain. The section of the tunnel next to the main entrance bunker features a narrow gauge railway, used to transport ammos and various supplies to the storage units inside. Deeper in, there is provision for sleeping quarters for the troops. To the far end of the tunnel you can get access to a group of fortified installations and artillery bunkers.

The Bouda installation can be visited thoroughly. The site is very big but more remote to reach than Hurka. Besides the access bunker, where the ticket office can be found, you can see a specimen of a metal turret. None of the original turrets has been left in this site, all have been salvaged by the Germans.

Soon after the beginning of the tour, you will see the terminal of the narrow gauge railway. The double track goes through a short incline. At the base of the incline the main tunnel starts.

Not far from the entrance you meet slots for sealing doors and related actuation systems. These were installed by the Germans and used to test their reliability and the effectiveness of their weapons on them. They had some cannons installed further in along the tunnel, and shooting on the armored doors they had installed.

The railway turns single-track, until you reach a major storage for weapons with a loading platform. One of the storage chambers has been reused to display a collection of weapons used in the forts and the corresponding armored embrasures.

Further on you visit a group of chambers originally intended to be fitted as sleeping quarters. The dividing walls and metal frames have been demolished at some point – or may be they were never installed – but some of them can be seen, original or reconstructed. In this area there is also a memorial to Czechoslovakian troops.

Further in the tunnel you reach another set of chambers, one of them with pieces of armored constructions and other heavy material from around the site. Then you get access to the stairs leading to a heavy artillery bunker.

What you see here is the cylindrical concrete box where the actuation mechanism and reinforced cupola should have been installed. The size of the construction suggest the total intended size of the field cannon assembly, really big! This should have been very similar to some of the installations in the Maginot line (see this post). There is also a firing chamber for lighter weapons where nothing remains except some metal coating.

The guide will lead you back to the bottom and inside the main tunnel, and ascending along another stairwell you can reach an observation bunker with provision for light weapons. This bunker is in a better shape, and significant traces of the original soft construction are clearly visible.

Damage is due also to weapons testing carried out by the Germans, clearly visible from the outside.

Upon reaching the surface, you will be directed along a walk through the exteriors of the bunkers in the fortress, including the incomplete heavy artillery bunker, with the large concrete pit from visible above.

Finally, you access one of the bunkers, which appears pierced and heavily damaged from the outside. On the inside the firing chamber is fairly well conserved, with the original embrasures for machine guns still in place. The wall is pierced presumably by a shell or mine.

This very bunker was used also for testing high-yield explosives, and as a result of a huge explosion it shifted sideward of a few feet, without collapsing and with no alterations to its general shape – really sturdy! You can clearly appreciate the shift by going down in the stairwell!

You will then return to the main entrance with the ticket office where the visit will finish.

Getting there and moving around

The bunker parking can be found very easily driving north of the road N. 11 between Cervena Voda and Cerkovice. The area is popular for nature trail hiking, and the fort is also a popular attraction. Following the road signs, you will be driven to an observation tower on top of a mountain.

From there, the entrance to the bunker can be reached only by taking a trail which descends along the northwestern side of the mountain. The distance to cover by foot is a good 1.5 miles, so this should be taken into consideration when planning your trip. You have to go uphill on your way back to the parking, so the trail is more demanding when you are leaving. There are signs on every crossing, so you should not get lost. By the way, the walk is really nice, going in the trees with some bird-eye views on this beautiful countryside!

Once at the entrance of the bunker you can find refreshments and souvenirs. The bunker can be visited only with a guide. They are offering three options for the visit, each of them adding something to the other, yielding a difference in time. I took the most complete tour, and it took about 180 minutes.

You are provided jackets for staying inside – even though the temperature is not extremely low, especially if you are wearing technical trekking clothes, which are recommended for the preliminary trail to the entrance. The jackets are dirty, so it’s better to bring one of your own, as they almost force you to have something to cover in!

The tour is offered in Czech, with explanations in English provided on all panels and on a leaflet you can borrow inside. There is a fee for taking pictures, but both this and the entry ticket are rather cheap. Further info on their official website.

Hurka

The Hurka fortress is an installation pretty similar to the Bouda site, at least considering the inside part. After some years of closure following WWII, the Hurka site was converted into an ammunition depot in the 1960s. The modifications inside include some demolition work on the soft walls and frames, so the structure is mainly composed of large vaults.

The tunnels can be visited only with a guide. The visit starts from the original gate of the underground facility, where all supplies could be placed on a narrow-gauge convoy. An external loading platform can be spotted, together with specimens of anti-tank devices and of the reinforced observation turrets.

Inside, an incline leads to the initial part of a long straight tunnel. The exhibitions provide an impressions of an ammo storage, and there are also weapons and armored embrasures from the fort.

An interesting exhibition prepared in one of the halls is about the activities of the agents of the Czechoslovakian government in exile during WWII. This included launching paratroopers over the territory of the former Republic, tasked with establishing contact with dissident anti-Nazi movements, and carrying out high-risk, top-priority missions. A pretty famous mission they were tasked with was the assassination of Reinhard Heydrich, a top-ranking SS, since 1941 responsible for the administration of the annexed territory of todays Czech Republic. A bloodthirsty, feared and hated figure, he died in hospital soon after having being shot in June 1942 in an operation codenamed ‘Anthropoid’. All the spies involved in the operation were later killed, and terrible retaliation actions were taken by the Nazis on the local population. An international movie was produced on this subject in 2016.

You don’t get access to the firing positions from inside, but you can visit them from the outside on your own and with no restrictions.

A pretty rare feature is a ‘top of the line’ artillery bunker, with three shooting embrasures on one side. This bunker is today standing severely damaged from German fire, inflicted during weapon testing. The bunker was actually de-interred by the Nazis to expose its walls, and perforation cannons were tested on it. Among them, the so-called Röchling shells, with a high perforation potential, adopted operationally but used very rarely in action by the Germans.

The other artillery positions are scattered on a grassy area on the side of a hill dominating a local valley. You can see the damages inflicted by fire testing, and the empty boxes of the metal turrets salvaged by the Germans.

Getting there and moving around

The tour of the underground starts from the original access bunker, which can be reached just north of Kraliky on road N.312. Convenient parking outside. The underground can be accessed only with a guide. The ticked office offers also food and beverages. More info on their official website.

The firing positions can be toured on your own. They can be accessed driving about 0.3 miles north along the same N.312 road to the top of the hill, and turning left on an unpaved road. You will soon see a bar with a prohibition sign for cars. You can park nearby on the grass and proceed by foot, you will meet the fortification with an almost flat walk of 0.15 miles. There are signs with multi-language explanations close to each of the bunkers. The place is really nice, and the walk is highly recommended.

Forts of the Maginot Line

Soon after the end of WWI, the government and the top-ranking officials of the victorious French Army set plans for a defensive system along the eastern border, which would protect the nation from future invasions. The ambitious plan was initially based on a line of reinforced concrete forts placed along the border with Italy, Germany, Luxembourg. Construction started in the last 1920s, and the defense system was named after Henri Maginot, ministry of war at the time and a major advocate of the project, who died well before its completion in 1932.

Construction works continued till at least 1935 on the Italian and German sectors. Soon after, in 1936 due to the re-negotiations of the alliance with Belgium, the line was partly extended along the border between France and Belgium, but it never reached completion, thus failing to seal that sector of the border – which might have been possible only by reaching the coast of the Channel.

When the first thunders of war resounded in Europe in 1939, the forts of the Maginot line were reinforced further. The German Army planned an attack accounting for the presence of the line, and when the invasion of France was enacted in May 1940, a small diversionary army was sent against the French forts, while most of the Wehrmacht moved quickly through the forests of southeast Belgium – the Ardennes – finally entering France in the region of Sedan, next to the western extremity of the French defensive line. So the immense defensive system was outflanked in about three weeks, and an armistice between France and Germany followed soon in June 1940.

The Maginot line is composed of 108 major forts – ‘ouvrage’ in French – plus many more smaller installations. These bunkers had often different characteristics depending on the region, and were interred to an extent depending on the local characteristics of the terrain. Typical features of these forts are turrets with cannons and periscopes. Larger forts have usually two separate entrances for the troops and for supplying goods – shells, grenades, kerosene for the electric generators, food, medical supplies, etc.. These forts could house more than 1’000 troops each. Larger bunkers were often connected by a network of underground tunnels with smaller observation or firing positions, or reinforced barracks. There was also a dedicated telephone communication network all along the line.

Many forts of the line never sustained attacks, while some did. Some were even used in the closing months of the war by the US Army, as strongpoints during field battles against the retreating German Army.

Today, many forts of the line are preserved as national monuments. Some of them are open as top-ranking museums, some have been entrusted to local societies of enthusiasts which allow to visit them on a regular or limited basis. Some are usually shut and inaccessible except by arrangement.

This chapter is about a few forts of the Maginot Line in northeastern France visited in 2016. These highlights provide an insight on the typical construction of these defensive installations. Featured are many photographs taken during these visits.

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Sights

Ouvrage de la Ferté

This smaller fort is probably the one in the Maginot Line which saw the most intense action. Located in the beautiful countryside north of historical Sedan, on the border with Belgium, this fort is where the invading Wehrmacht inflicted a first major blow, entering French territory in Spring 1940. It was in the focus of a direct German attack between May 18th-19th, 1940, and no one of the French soldiers in the fort survived.

This installation, located on top of a hill, is composed of two main blocks, connected by an underground tunnel. The interior can be visited only on a guided tour, while the exteriors can be walked freely. The visit starts in the visitor center,  with a very nice animated movie telling the story of the fort, and of the momentous events of May 1940 it was involved in.

Then you are taken to the entrance of the bunker nearby. Getting closer, you are shown original defensive obstacles originally placed along the perimeter of many forts of the Maginot Line. There are six lines of rail beams stuck vertically in the ground, to stop tanks and vehicles, plus lines of barbed wire against attacking troops.

The entrance is through a bunker – Block 1 – emerging from the side of a hill. On top there are thick metal turrets for observation and rifle/machine gun firing. The entrance is through a smaller drawbridge, leaning over a dry moat. This is a distinctive feature of many similar forts of the line. An attacker close to the main door would find himself on the line of fire of anti-tank and lighter arms shooting through sealed loopholes in the wall of the bunker, and vulnerable to grenade attacks, which could be slipped through specially built inclined tubes. From the apron ahead of the bunker you can spot in the distance another concrete bunker part of the same group, about 1 mile away to the southeast. It cannot be visited.

Once inside you can see the shooting chamber opposite the wall close to the main door. Original light weapons are still in place – an anti-tank cannon and a machine gun. Close by there are the dormitories for the troops, the office of the commander and other service rooms, including bulky filters for the ventilation system.

During the fight, a grenade exploded inside the bunker, and this produced an extensive damage. Some non-structural walls collapsed, and what remains can be seen today. The ensuing fire was the final cause of the French disaster during the German attack, as the gas masks of the French troops were not designed against carbon monoxide resulting from a usual fire – most soldiers died from asphyxia.

The guide will drive you to the other block, walking along the connection tunnel. Block 2 features a revolving turret, which could be also retracted for sealing the bunker when necessary. When extracted, it exposed the barrels of various light weapons. This turret can be accessed if you are sufficiently agile. It was put out of combat by applying explosives which stuck the revolving mechanism – the turret has since then assumed a slightly banked attitude.

The guided tour ends after exiting through the door of Block 2. Moving around on top of the construction, you can see the clear signs of the German shelling on top of the turrets. Also the print left by a pack of explosive stick to the side of the revolving turret, but causing little damage, can be clearly spotted.

Between the two blocks, on the side of a local road crossing the site, a further concrete bunker with a small door – this time totally inaccessible – can be found. Opposite the road, there is a monument to the French soldiers who were killed in the attack.

Getting there and moving around

This site is really worth visiting also for those with a general interest for history, and it offers a very good insight on the specific features of the Maginot Line for technically minded people as well. The guide is very knowledgeable, and provides explanations in English also during visits in French. The place is managed as a modern museum, website here. The guided tour will last approximately 45 minutes. Allow more for touring the outside on your own and taking pictures. It can be reached along the road connecting Villy and La Ferté-sur-Chiers, less than 20 miles southeast of Sedan.

Ouvrage Simserhof

This is one of the big forts – ‘gros ouvrage’ – of the Maginot Line, located close to the German border. It was dug in the side of a hill, with two separate gates. The lower one at the foot of the hill was for supply, where the top one, close to the top of the hill, was for the troops. Both gates are reinforced concrete bunkers with loopholes for light artillery to defend the apron ahead of the entrance.

The place has a modern visitor center. The visit – only possible with a guide – is articulated in two parts. The first is a tour of the lower level, which used to be the storage for ammunitions as well as anything needed to supply the activities going on in the fort. This level has been converted into a dynamic exhibition, with sounds, a narrating voice, some visual effects. It is toured conveniently sitting on a cable car. The second part is a classic guided tour of the top-level, and it will start from the top entrance.

The inside of the fort is huge, and the tour is pretty extensive. You are shown the firing chambers besides the entrance, many tunnels, dormitories, living quarters for the troops, medical rooms, the rooms for the electrical generators, and many other service rooms. Remarkably though, you are not shown the artillery installations in the peripheral blocks.

Getting there and moving around

The museum is a prominent tourist attraction in the area. The visit to the lower level is more for children and people with a very general interest for 20th century history. The original setting was changed deeply to host a modern dynamic exhibition, which may not appeal to more technically minded subjects. The visit to the top part lasts about 1.5 hour, and is maybe too hard for kids. Many technical details are provided here and many items shown. Yet the fact that you cannot access any artillery position – at least when I visited – is a bit disappointing. Everything in French only when I visited. Info and timetables for visiting from their website. The closest sizable town is Saarbrücken, Germany, about 30 miles northwest of the site.

Ouvrage du Four à Chaux

This is an intermediate size fort, which hosted around 600 men in the days of operation. The visit – only possible with a guide – is very interesting, as the fort has many characteristics typical to larger installations of the Maginot Line – like Simserhof, see above – but it is more compact and easy to visit. Furthermore, during the visit you are shown all areas of major importance, covering the housing part, as well as the artillery control and firing part.

Much like larger forts, there are two entrances at two different levels on the side of a hill. You get inside through the top one, for troops. Access is by a drawbridge over a small artificial dry moat. From there, you are shown a series of long corridors and tunnels, along which you can find the dormitories and technical rooms.

A special feature is an escape tunnel, built vertically and reaching the top of the hill from the core of the fort. The tunnel is actually made of two twin parts, where the first was designed to be filled up with debris coming from the top of the hill in case of an attack, leaving the other free. This way escape was possible even after the emergency exit had been specifically targeted you enemy fire, causing the debris to fall inside. Further features include the big filters of the ventilation system.

The firing control area can be reached following a corridor going gently uphill. Here you are shown the technical situation rooms from where war operations were coordinated. Several panels and cutouts provide an idea of the structure of the fort.

Then you get access to the ammo storage. Here ammunitions for bigger calibers were put in canisters which were moved thanks to a rail hanging from the ceiling. Larger used shells were conveyed from the cannon to a storage area throwing them on a slide.

One of the retractable turrets is still perfectly working. The guide will operate the mechanism, showing how the turret can be moved up and down, and also how it can rotate. A closed circuit camera shows the turret from outside, thus allowing to better appreciate the effect of the mechanisms you see standing inside. This part is very interesting, and provides a good idea of how the fort worked during a battle.

The guide will finally drive you to the exit through the lower entrance originally for resupply, which is reached going down an inclined tunnel, used to load trolleys full of ammunitions moving them from the storage level to the operative quarters of the fort.

Close by the exit you can find an American M41 tank used as a gate guardian!

Getting there and moving around

The visit of this fort takes about 2 hours and it is very interesting. The museum is possibly less famous than others in the Maginot Line, which makes it more enjoyable, as groups are smaller and the staff is more dedicated. On the other hand, opening times are more limited, you can find information on their website. The visit was in French, but the guide answered my questions in English, plus you are provided a detailed paper guide in English – and probably other languages as well – for the time of the tour. The fort is on the premises of the town of Lembach, about 20 miles north of Strasbourg in the northeastern corner of France, right on the border with Germany.

Casemate Esch

This smaller reinforced artillery position is only rarely open to the public. Yet even from the outside it makes for a pretty unique sight. Actually this installation found itself in the middle of a storm in January 1945, when the 14th Armored Division of the US Army was stopped by the German army in the area of Haguenau during operation ‘Nordwind’, conceived by the Wehrmacht to repeat the success of the offensive in the Ardennes of May 1940. Many found shelter in this fort as a fierce tank battle raged all around.

Heavy damage resulting from intense shelling can be clearly spotted on this relatively small reinforced concrete building. A M4 Sherman tank has been placed on top of the bunker as a memorial.

Getting there and moving around

The barracks can be visited only on Sunday during the warm season. A view of the outside may be interesting, especially if you have already an idea of what a Maginot fort looks like from the inside. The place can be spotted easily on the side of D-28 less than 1 miles southeast of the small village of Hatten, some 15 miles north of Strasbourg. Information through the website of the larger Schoenenburg fort. For the outside, a tour of 15 minutes should be enough.

Abri de Hatten

This site is actually an extremely interesting WWII and Cold War museum, centered on the reinforced barracks in the village of Hatten, part of the Maginot Line. Inside the barracks, which can be toured on your own, you can find some of the original rooms rebuilt with their original furniture, especially a dormitory, a kitchen, medical facilities, air filters and power generators.

Due to the big size of the bunker, some rooms have been used to host extremely interesting exhibitions. These are about the life in the area in the times of the German occupation. Pictures and rare original artifacts with Nazi insignia are part of the collection. A unique German map of the world from 1941 is displayed – showing with the Swastika as the national flag of Germany, and many borders in Europe looking very different from now!

A room is dedicated to the wreck of a Messerchmitt Me-262 Schwalbe, the worlds first operative jet engined fighter. This aircraft was downed nearby the fort in the closing days of WWII. The two jet engines make for an interesting sight, plus there are many components of the avionics system originally on board this very aircraft, really futuristic at the time.

Another room showcases detection and communication gear from the Cold War years, and from both sides of the Iron Curtain. This recalls the fact that, soon after WWII, France decided to keep the largely untouched Maginot Line as a defensive installation against the Soviets. Having grown obsolete after nuclear stockpiles had begun to be produced also in France, the line was finally decommissioned by the early 1960s.

The premises of the reinforced barracks are scattered with further interesting items, including cannons of several makes and bores, anti-tank, anti-aircraft and heavier field cannons, from France, Germany, the US and the Eastern Bloc.

There are a MiG-21 and a Mil helicopter from the communist German Democratic Republic (GDR), a French Dassault Mirage, several antennas, a Soviet surface to air missile, more trucks from the GDR. There is also what appears to be a partly authentic border control booth with national insignia from the former border between possibly West Germany – maybe somewhere in Berlin – and the GDR.

There is a small memorial building dedicated to a group of soldiers of the French Army which after the armistice with Germany in 1940 were integrated in the Wehrmacht, and later sent to fight on the side of the Germans against the Soviets on the European Eastern Front. Due to the very harsh conditions of that sector of the front, many would never come back.

There are also two further buildings in the museum. The first is about the Maginot Line, with a comprehensive – and very interesting – collection of models of its various types of forts and reinforced structures. The second is on WWII, with remains of a downed Republic P-47 Thunderbolt, German transport vehicles, and many artifacts and weapons.

Among the most peculiar items on display there is a parachute for pigeons. These birds were extensively used for communication between occupied France and Britain. British birds were parachuted in France. If they fell in the right hands, they could be loaded with a message and launched. Their instinct would then guide them back to their home base across the Channel. Some of these birds even received military decorations for their bravery in this vital service!

Finally, a small collection of heavy army vehicles are kept in operative conditions by a local society of enthusiasts. These include US half-tracked vehicles, trucks, an American M60 and a Soviet T-34 tank!

Getting there and moving around

This unique, one-of-a-kind collection can be visited on a self-guided basis. Depending on your interest, a visit may take from 45 minutes to more than 2 hours. A website with some visiting information is here. There location is on Rue de l’Abri, immediately to the west of the village of Hatten, 15 miles north of Strasbourg. Most explanations are in French and German, plus scant signs in English. Please note that they accept only cash.

Fort de Mutzig – Feste Kaiser Wilhelm II

While not a part of the Maginot Line, the history of this fort is interesting, for it was erected by the Germans at the end of the 19th century, when the regions of Alsace and Lorraine – now part of France – had been lost to the German Reich following the French defeat in the Franco-Prussian war of 1870. It was designed and built as the most technologically advanced fort of its time. The construction was based on concrete instead of masonry, which made it capable of withstanding heavy shelling from the most modern and powerful howitzers of its age. It was made of three sectors, erected on top of a hill not far from Strasbourg, and was part of a defensive line built around that city against the French. It was dedicated to Kaiser Wilhelm II.

This immense structure featured two batteries of four heavy 150 mm howitzers and fourteen 105 mm cannons in specifically designed turrets, plus lighter observation and firing turrets. About 1’000 men stationed in the fort, which saw limited action in WWI and was ceded to France in 1918. Correspondingly, it changed name to Fort de Mutzig. At the beginning of WWII, it was regained by the invading German Army, which occupied it but later sent the cannons to the Atlantic Wall. It was bombed by the Luftwaffe in the closing days of WWII, but it basically went through the turbulent first half of the 20th century without sustaining any major damage. It was later abandoned and re-opened as a museum, frequently updated as more sections are restored.

It is today one of the largest and best preserved examples of early concrete forts – actually a good example of WWI military architecture, as construction techniques remained very similar until after WWI.

Visiting is possible only in guided groups. The visit will take you to the northern sector, where you can see the firing chamber for defending the gate, and a series of rooms including the living quarters of the troops stationed there. There are a the dormitories, a medical room and even a bakery. Most writing from the time is in German, and most machines bear the name of a German brand! You can visit the original toilet – even there, no privacy was allowed, to prevent the troops from committing suicide by always keeping a watch on them.

Inside the many empty rooms, there are exhibitions of artifacts like models of the turrets, reinforced observation posts and weapons from the original supply of the fort.

Interestingly, the original electric generators have been carefully restored together with the power-plant control panel – very nice, really from an older age!

The tour of the exterior will take you to the top of the fort, where observation and firing turrets can be seen from the outside.

Finally, a battery of four 150 mm howitzers is approached and visited.

Getting there and moving around

The fort can be reached on top of a hill about 12 miles west of Strasbourg. The road going uphill starts between the villages of Mutzig and Dinsheim-sur-Bruche. The guided tour – the only way to visit – takes about 1.5 hours. The visit will be extremely interesting for the general public and more technically minded people as well. Website with information here.