Sunday, 27 March 2016

Zeebrugge Mole Explained: Structure, Defences and the St George’s Day 1918 Assault

The Zeebrugge Mole, a huge crescent‑moon shaped concrete breakwater stretching 1.5 miles into the North Sea, was originally built in 1903 to shield Zeebrugge Harbour from violent western storms.

How the Zeebrugge Mole Was Built and Why It Mattered

By World War I, however, this immense structure had been transformed by German forces into a heavily fortified naval bastion guarding the entrance to the Bruges Canal. With its towering concrete walls, railway lines, gun batteries, searchlights and a lighthouse watch‑post, the Mole became one of the most formidable defensive positions on the Belgian coast — and the near‑impossible target of Captain Roger Keyes’ daring raid on St George’s Day 1918.

How German Forces Transformed the Mole Into a Naval Stronghold

In more detail, the aptly-named Mole is a crescent-shaped concrete breakwater viaduct, jutting in a north-easterly direction towards the North Sea. It was originally built to protect Zeebrugge Harbour from the harsh North Sea storms that swept in from the west.
Foreshortened View of the Mole after the Zeebrugge Raid
Concluding with a lighthouse at one end, the Mole is 1.5 miles in length and sturdily built. It was completed in 1903 to great ceremony by King Leopold III of Belgium. But little did anyone realise at the time, that the German forces would utilise it as a fort, heavily guarded by 1000 men and countless battery-guns. The lighthouse formed the ideal watch-post against allied invasions from the sea.
Entrance to the Bruges Canal
The causeway running along the Mole had been laid with a road and a railway within the shadow of a 15 foot concrete wall, 10 feet thick on the seaward side. This provided protection from the inclement weather (and during wartime) allied invasion. Incredibly, the top of the wall provided a secondary roadway and a further wall, 4 feet higher than the wall at its base.

Captain Roger Keyes and the Challenge of the 1918 Zeebrugge Raid

Any raiding vessel stood little chance of overcoming the strong ocean tides, harsh sea gales, countless gun emplacements, cannons, nets and artillery. And this without being spotted first by powerful searchlights or the lighthouse itself.
Captain Roger Keyes, chosen to raid the Zeebrugge Mole on St George’s Day 1918, must have been too aware of the challenges that he faced.

The Zeebrugge Raid Strategy: Blockships, U‑Boats and Captain Roger Keyes’ 1918 Plan

In1918, Britain was struggling under the assault of German U‑boats launched from the Bruges Canal via the fortified harbours of Ostend and Zeebrugge.

The Zeebrugge Raid Strategy: How Britain Tried to Block the Bruges Canal in 1918

The Flanders flotilla had already sunk more than 2,500 Allied ships, and the Zeebrugge Mole — a massive breakwater turned German stronghold — provided the perfect sanctuary for their operations. To break this stranglehold, Captain Roger Keyes devised a daring plan: storm the Mole, scuttle three retired vessels as blockships, and seal the canal entrance. Supported by HMS Vindictive and two Mersey ferries, the raid became one of the most ambitious naval operations of World War I.
In World War I, Captain Roger Keyes was chosen to storm the Bruges canal in Belgium that provided exits to the open seas via Ostend and Zeebrugge. The German flotilla has used the Zeebrugge Mole as a convenient sanctuary from which to launch U-boats and sink allied ships passing through the English Channel. By 1918, Britain was virtually held under siege by the menace of the German U-boats.
The Zeebrugge Raid Strategy: How Britain Tried to Block the Bruges Canal in 1918
View from above. Scuttling the Blockships: Thetis, Iphigenia and Intrepid
Public domain image of the wrecked British vessels
after the Zeebrugge Raid
The crews of the flotilla were looked upon with disdain, almost as pirates. Such an action as torpedoing passing vessels from the concealment of the sea was seen as unethical and cowardly. By this time, they had already sunk over 2,500 allied ships.
In order to block the Bruges canal entrance, Keyes perfected a plan to use retired mining vessels: HMS Thetis, Iphigenia and Intrepid, which would become ‘blockships’ by scuttling. A storming of the Mole by means of HMS Vindictive with the aid of two Mersey ferries, HMS Iris II and HMS Daffodil would provide the diversion needed.
Captain Roger Keyes’ Plan to Seal the Canal with Blockships
In the meantime, two submarines loaded with explosives would breach the Mole wall, providing access to the Bruges canal. Behind the resultant smokescreen, Vindictive would offload 200 royal marines who would disable the gun emplacements lining the Mole. The three blockships would also be scuttled in place, closing off the Bruges canal.
Keyes had already been to the Zeebrugge Mole in 1914 when on board HMS Lurcher during the Battle of Heligoland Bight, so he knew the layout of the area. He also knew the blockships had to have the right girth – just wide enough to enter the canal, but not so narrow that the smaller boats could pass through. Each blockship would be filled with concrete, making them virtually impossible to move once scuttled. Both Ostend and Zeebrugge would be raided simultaneously to give the enemy no chance to clear either end.

Aftermath and Legacy of the Zeebrugge Raid
Sadly, the outcome of the raid was vastly different to the plan. The wind changed direction during Vindictive’s approach, clearing the smokescreen and providing a clear view of the raiding marines. HMS Thetis was not scuttled in the right place, leaving the canal entrance partially open and allied marines suffered heavy casualties.
Despite the failure of the mission, Captain Keyes and his staff were lauded as heroes and Churchill declared that the Zeebrugge Raid was the ‘finest feat of arms’.

Admiral Roger Keyes: The Fearless Commander Behind the Zeebrugge Raid

ROGER JOHN BROWNLOW KEYES was already an experienced admiral prior to the Zeebrugge Raid. Born in the Punjab in 1872, he was only 13 years old when he began his Royal Navy career as a cadet. He steadily worked his way up, becoming lieutenant of HMS Turquoise at the tender age of 21.

Admiral Roger Keyes: The Fearless Commander Behind the Zeebrugge Raid

Admiral Roger Keyes commander of the Zeebrugge Raid 1918
Roger Keyes
Public domain photo
(The Seafarers) Arthur Corbett Smith
Fourth born to Sir Charles Patton Keyes, this British-Indian officer’s son declared from an early age he wanted to go the family way and serve the British Empire. And to this end, he became a confident and audacious naval officer who feared no challenge or opposition as he travelled throughout Europe, Africa and Asia. 

Key Missions: Zanzibar, Boxer Rebellion and the Dardanelles

Chief missions include the suppression of the Slave Trade from Zanzibar, key involvement in the Dardanelles Campaign, commander of the Dover Patrol on the South coast of England, the Zeebrugge Raid in Belgium and the capture of Chinese destroyers during the Boxer Rebellion in 1900.

Rising Through the Ranks: Keyes’ Naval Career Before WWI
Keyes feared mockery least of all, proving wrong his incredulous Russian naval staff when he disabled the Boxer defences who besieged parts of Peking after terrorizing Western nationals.
Keyes’ bold approach against the Boxer uprising formed the turning point in his career and he earned prestigious appointments within the Royal Navy, commanding numerous destroyers and battleships. In 1916, he inevitably earned a Distinguished Service Order for action in armed combat.
And yet, Keyes was already a naval veteran prior to the Zeebrugge Raid in 1918. Keyes loved the sea and he embraced any mission, no matter how formidable. His involvement in the Battle of Heligoland Bight in 1914, for instance, resulted in the sinking of several German vessels with the loss of 1000 German soldiers, but not without significant losses of his own men.
A year later, Keyes was appointed Chief of Staff to the Gallipoli Campaign, although his proposals to attack the Turkish forts from the rear were never carried out. Much of his frustration lay in his inherent need to ‘get things done’ rather than take the so-called unimaginative and stodgy approach of some of his bureaucratic fellow officers.
The Dover Patrol and the Fight Against German U‑Boats
Keyes was the natural choice for the storming of Zeebrugge and Ostend, being pragmatic and experienced in raiding stratagems. But first, Keyes closed off the Straits of Dover to the German Uboats sneaking through allied defences at night. Keyes’ intelligent strategy involving the laying of sea mines at various depths sunk several German submarines within a mere month.
However, Keyes was almost drowned soon after when the seaplane he was travelling in had to crash land due to engine failure. But his greatest challenge was yet to come, as his flagship. HMS Warwick provided a conspicuous target for the German naval men stationed on the Mole off the coast of Zeebrugge. Keyes was consistent in his offensive approach and demonstrated to the public his iron will and determination, as well as that of his crew.
Although the outcome of the Zeebrugge Raid saw limited success – the German officers were able to clear the Bruges channel after being scuttled by allied blockships – Keyes was seen as a national hero along with his fleet.

Keyes' Later Career: Politics, Combined Operations and World War II

Keyes continued in his involvement in the training of commandos in the raiding of hostile locations and also commanded various battlecruisers between the wars before becoming Admiral of the Fleet in 1935. But he saw little action at sea from then on, involving himself in politics and becoming MP for Portsmouth North. Active on the debate on the government’s effectiveness in war tactics, he was instrumental in Churchill’s rise.

Keyes proposed plans to raid Nazi occupied ports in Europe during World War II, but the chief of staff saw Keyes as being reckless and his plans were turned down. Replaced by Lord Louis Mountbatten as the director of Combined Operations Headquarters, Keyes felt betrayed by those he had supported.

Final Years, Legacy and Burial Among His Men

To appease Keyes’ disillusionment, the title ‘Baron Keyes of Zeebrugge and Dover’ was offered. Keyes closed his career via a farewell tour around Canada, New Zealand and Australia on board HMS Appalachian. Sadly, Keyes suffered lung damage after inhaling aircraft smoke from Japanese aircraft and never fully recovered. He died of a heart attack a year later in 1945.
Through all the action Keyes had seen, he still wished to be buried amongst the men who had given their lives to the Zeebrugge Raid in 1918.

Monday, 14 March 2016

Gun Barrel with Firing Mechanism on the Mole Coast near Zeebrugge

This detailed photograph shows the gun barrel, firing mechanism and mounting bolts used by German servicemen in the 1918 Zeebrugge Raid. The Mole coast off Zeebrugge can be seen in the background.

The image below shows the German Gun Emplacement used in the Zeebrugge Raid. Image bottom shows a detailed view of the firing mechanism.




Background on the Zeebrugge Raid

To bring context to the photograph shown, I shall provide a little background.

On St George's Day 1918, the German occupied ports of Zeebrugge and Ostend were stormed by the British Forces. To this point, the German flotilla and taken siege over the English Channel, sinking allied ships. England was starving and British condemnation gathered, for these sinkings seemed to be indiscriminate, particularly after the sinking of the Cunard liner, Lusitania on 7 May 1915.

Sentinels on the Bruges Coast


Prime minister, David Lloyd George agreed on a system where the Grand Fleet would shadow merchant ships across perilous waters. But further sinkings would occur. The situation seemed to be stalemate. Thus, a daring mission to raid the German U-boasts was planned. Here, allied forces converged on a common mission. These forces consisted of those of the sea; the Naval Air Service, the Royal Navy and the Royal Marines.


The German Gun Emplacement Looking out at the British Channel

The photos show the sort of equipment the Germans used to watch the coast. Notice the eyepiece on this heavy gun emplacement, the gun shield breech lights, positioning mechanism and firing apparatus. This is what the British were up against.

The links below lead to further reading.

Zeebrugge Coastal Gun Emplacement on a Concrete Mount with Shelter

Take a look at this rare photograph. This striking view captures a German coastal gun emplacement placed on the Zeebrugge Mole around 1918, during the Zeebrugge Raid. The image offers a rare, ground‑level view from within the shelter, looking outward toward the coast. Coastal defence photographs from this angle are rare, making this image a valuable piece of visual evidence from the final year of the First World War.

German Gun Emplacement Looking out from the Mole Coast 1918
German Gun Emplacement Looking out from the Mole Coast

Inside the Gun Shelter: A View from Below

The photograph shows the gun resting staunchly on its concrete mounting block, a feature of German coastal fortifications designed to absorb recoil and stabilise artillery. From this sheltered position, the weapon would have been protected from the elements and partially shielded from enemy fire.

To the right of the frame, a set of concrete steps leads up to the strongroom door — a reinforced storage space where ammunition, tools and essential equipment were kept. These strongrooms were vital for maintaining the gun’s readiness, especially during periods of heavy naval activity.

The Zeebrugge Mole: A Strategic Stronghold

Ahead of the emplacement lies the Zeebrugge Mole, a massive breakwater structure that played a crucial role in German naval operations. The Mole served as a protective barrier for U‑boats and destroyers operating from the nearby harbour, making it a key target during the British raid on St George’s Day, 23 April 1918.

The Mole was heavily fortified with gun positions, searchlights, machine‑gun nests and observation posts. This photograph captures one of the many defensive structures that made the Mole such a formidable obstacle for the attacking forces.

Coastal Defences During the 1918 Zeebrugge Raid

The Zeebrugge Raid aimed to block the harbour entrance by sinking obsolete ships — known as blockships — to stop German U‑boats from entering the Channel. Coastal guns like the one shown in this photograph were part of the defensive network that responded to the British assault.

Although the raid did not fully achieve its long‑term goal, it remains one of the most daring naval operations of the war. Images like this help illustrate the environment the raiding forces faced: reinforced concrete, elevated gun positions and well‑protected shelters designed to withstand bombardment.

Viewed from below in its shelter, a gun sits on its concrete mounting block. To the right, we can see steps leading up to the strongroom door entrance. The Mole off the Zeebrugge coast is located ahead.

This photograph was taken around 1918 around the Zeebrugge Raid.

Friday, 4 March 2016

German Naval Officers at Ostend Presiding Over a Submarine, 1918

This rare photograph captures a group of German naval officers standing on the deck of a submarine at Ostend in 1918, during the final year of the First World War. Ostend, along with nearby Zeebrugge, was a crucial base for German U‑boat operations in the English Channel and the North Sea.

Images of submarines from this period are uncommon, making this photograph a valuable glimpse into the daily routines and working conditions of the Imperial German Navy.

German Submarine with Navy Crewmen on Deck, Ostend, 1918
German Submarine with Navy Crewmen on Deck, Ostend, 1918

Life On Board a German U‑Boat in 1918

By 1918, German submarines — or U‑boats — had become one of the most feared weapons of the war. Their ability to strike unseen beneath the waves changed naval warfare forever. This photograph shows the submarine surfaced at harbour, giving a rare view of the crew in daylight rather than the cramped, dim interior where they spent most of their service.

The officers appear relaxed but purposeful, suggesting a moment of routine inspection or preparation. Submarine crews were highly trained specialists, responsible for navigating, maintaining machinery, and operating the vessel’s weapons under extreme pressure.

Weapons and Equipment on Deck

At one end of the deck, a crewman grips the cranking handle of a machine gun mounted on the submarine. Although U‑boats were primarily designed for underwater attacks using torpedoes, deck guns and machine guns were essential when engaging smaller vessels or defending the submarine while surfaced.

Torpedoes remained the submarine’s chief offensive weapon, capable of crippling or sinking large ships with a single strike. However, the deck armaments allowed the crew to conserve torpedoes when confronting lightly armed targets.

Naval Officers at Work: Maintenance on the Gangplank

On the gangplank, a group of German naval officers can be seen performing maintenance work. Submarines required constant inspection and repair, especially after long patrols in harsh sea conditions. Even small mechanical issues could become life‑threatening once submerged.

The officers’ presence on deck suggests a moment of preparation — perhaps before a patrol, or immediately after returning from one. Their uniforms and posture reflect the discipline and hierarchy typical of the Imperial Navy.This photograph shows German naval officers on deck of a submarine at Ostend in 1918.

At one end of the deck, a submarine crewman holds the cranking handle of a machine gun. Being an underwater fighting vessel, torpedoes were the submarine’s chief weapon.

On the gangplank a group of German navy officers perform maintenance work.

Relevant Links on the Zeebrugge Raid 1918



View Further Images Relating to the Zeebrugge Raid


HMS Vindictive: From Zeebrugge Assault Ship to Ostend Blockship in 1918

MS Vindictive played a vital role during the First World War, first as the reinforced assault ship used in the Zeebrugge Raid, and shortly afterwards as a blockship scuttled at Ostend to stop German U‑boat operations. Her service in 1918 made her one of the most recognisable Royal Navy vessels of the conflict, and today a memorial stone in Ostend commemorates her sacrifice.

HMS Vindictive Before the Zeebrugge Raid

The photograph below is from December 1897, showing Vindictive early in her career. She was an imposing vessel, originally built as a second‑class protected cruiser, she would later be heavily modified for frontline assault work.

Reinforcement for the Zeebrugge Mole Attack

At the end of her career, HMS Vindictive was reinforced for the attack on the Zeebrugge Mole. In the same year, soon after, she was scuttled as a blockship inside the Ostend submarine harbour. A memorial stone to the vessel is now at Ostend. This picture was taken in December 1897.

A sentinel type class vessel: 5.750 tons in weight; 320 feet in length, the Vindictive was sunk as a blockship at Ostend on May 10 1918.

The other blockships used on the Zeebrugge Raid were HMS Thetis and Iphigenia. Both were Apollo class British light cruisers, sunk as blockships at Zeebrugge in April 1918.

HMS Vindictive a battleship involved in the Zeebrugge Raid 1918 prior to modifications
British Naval Ship HMS Vindictive Prior to the Zeebrugge Raid

Note: The inscription on the original photograph reads 'HMS Vindictive' (bottom left) as existed on the acquisition of this old photograph in a flea-market. This photograph forms part of the collection.

The list below show a selection of links that relate to this article for further reading.

Wednesday, 2 March 2016

Scuttled Naval Ship HMS Intrepid in the Mole after the Zeebrugge Raid 1918

MS Intrepid was one of three blockships that was used during the Zeebrugge Raid on 23 April 1918 to hamper enemy movement. The Royal Navy used her to block German U‑boats from leaving the Bruges Canal. As will be explained in this article, the Intrepid played a vital role in one of the most daring naval operations of the First World War.

HMS Intrepid: The Apollo‑Class Blockship of the Zeebrugge Raid

The photograph below shows the battleship, HMS Intrepid which took a vital role in the blocking of German U-boats at Zeebrugge on St George's Day, 1918. My father acquired this photograph from a flea-market, which has since been researched for this article.

This ship was a cruiser of the Apollo class that was used to scuttle the narrowest point of the Bruges Canal under the commander of Stuart Bonham-Carter. This meant the German submarines couldn't leaving the Bruges. They were trapped at the entryway until high tide to negotiate a way through the channel.

How the Scuttling of the Intrepid Took Place

The Intrepid was filled to the brim with cement, concrete and rocks and sunk at the harbour under enemy attack. This is a classic example of 'scuttling'. This means a ship is sunk at a vital location to hamper the movement of enemy ships. The Intrepid was scuttled at the entry point of the canal, together with her sister ship, HMS Iphigenia.

Once both ships were in place, motor launches fetched the crew and left both ships derelict.

HMS Intrepid and the Bruges Canal Blockage

The raid was viewed as morale boost, even though the canal was not fully blocked and is remembered for the extraordinary bravery of the participants.

The photograph conveys the drama of a doomed ship at the end of her commission, scuttled and left derelict at the canal after the Zeebrugge offensive. The Ship, having served its purpose, begins to rust without a soul in sight within the Mole entryway.

Laden with cement, the ship formed an effective (if temporary) barrier against German passage.

British Naval Vessel HMS Intrepid Scuttled on the Mole Coast
British Naval Vessel HMS Intrepid Scuttled on the Mole Coast

The articles below provide a route for further reading relating to a collection of old photos on the Zeebrugge Raid acquired from dealers and markets.

Scuttled British Naval Vessels Intrepid and Iphigenia on the Mole

This atmospheric photograph shows the scuttled British naval vessels HMS Intrepid and HMS Iphigenia idling against the Zeebrugge Mole following the raid of 23 April 1918. Viewed from the quayside, the two ships appear like relics — their mission complete, their usefulness spent, and their final resting place fixed in the concrete shadow of the Mole.

These vessels were never meant to return home. Instead, they were chosen for a single, high‑risk purpose: to be deliberately sunk in the narrow channel leading to the Bruges–Zeebrugge harbour, blocking German U‑boats and destroyers from reaching the open sea.

The Purpose of the Blockships in the 1918 Raid

HMS Intrepid and HMS Iphigenia were part of a group of “blockships” — older, expendable vessels selected for scuttling. Their role was central to the British plan to hinder German naval operations along the Belgian coast.

To prepare them for this mission:

  • The ships were stripped of unneeded equipment

  • Their hulls were strengthened and filled with cement

  • Explosive charges were placed for controlled sinking

  • Crews were selected for the mission.

Once inside the channel, the crews were to detonate the charges, abandon ship under fire, and escape by motor launch.

A Dramatic View from the Quayside

In this photograph, the blockships lie low in the water, their decks tilted and their hulls partially submerged. The aftermath of the raid can be appreciated — the moment when the ships, weighing thousands of tons, had settled into position.

From this angle, the ships appear ghostly, their battered forms silhouetted against the geometry of the Mole. The stillness of the scene belies the chaos of the night before: smoke, gunfire, searchlights, and the manoeuvring of ships under German fire.

How the Ships Were Prepared for Scuttling

The blockships were prepared for this operation:

  • Cement ballast was added to ensure rapid sinking

  • Steering and propulsion were reinforced to survive the run‑in

  • Protective plating was added to shield the volunteer crews

  • Explosive scuttling charges were installed below the waterline

These preparations turned the ships into massive wrecks — floating obstacles designed to choke the harbour entrance.

The photograph shows the success of that engineering: the vessels lie exactly where they were intended to settle.

Scuttled HMS Iphigenia and Intrepid, Zeebrugge, 1918
Scuttled HMS Iphigenia and Intrepid

View from the quayside of scuttled British navy ships HMS Intrepid and HMS Iphigenia. These dispensable vessels were loaded with cement and flooded in order to block the entryway into the Mole.

Weighing thousands of tons, these ‘blockships’ appear more like old relics, having served their purpose during the Zeebrugge Raid of 1918.

Closeup view of Scuttled HMS Iphigenia and HMS Intrepid, 1918
Dramatic closeup view of Scuttled HMS Iphigenia and HMS Intrepid

The Zeebrugge Mole After the Raid: Bomb Damage and Scuttled Blockships

This rare photograph shows the Zeebrugge Mole in the aftermath of the Zeebrugge Raid of 23 April 1918. The image presents a foreshortened view along the concrete quayside, revealing the extent of the bomb damage inflicted during the British assault. Cracked surfaces, shattered edges and scattered debris illustrate the intensity of the fighting that took place along this heavily fortified structure.

Scuttled British Blockships at Zeebrugge: HMS Intrepid

The Mole was central to German naval operations, serving as a protective barrier for U‑boats and destroyers. As such, it became a primary target during the raid, and this photograph offers a rare glimpse of the destruction left behind.

The Mole at Zeebrugge and Scuttled Intrepid Showing Bomb Damage
The Zeebrugge Mole Looking towards the Lighthouse

A Foreshortened View of Wartime Destruction

The angle of the photograph emphasises the length and scale of the Mole, drawing the eye along the damaged quayside toward the distant lighthouse. The concrete surface shows clear signs of bombardment — broken sections, pitted stonework and debris scattered across the walkway. These details help convey the violence of the raid and the vulnerability of even the most imposing defensive structures.

In the water beside the Mole, a British submarine — a casualty of the conflict — appears to have rolled onto its side. Its tilted hull and partially submerged form add to the sense of devastation, illustrating the chaotic aftermath of the battle.

Salvage Efforts: Tugboats, Cranes and Sunken Debris

In the foreground, sunken parts and debris are being hauled toward the quayside by a tugboat and crane. This activity suggests the early stages of post‑raid salvage work, as German forces attempted to clear the harbour and restore access for their vessels.

The presence of cranes and tugboats highlights the strategic importance of the Mole. Keeping the harbour operational was essential for maintaining U‑boat activity, and any obstruction — whether from bomb damage or scuttled ships — required immediate attention.

HMS Intrepid at Rest Beside the Lighthouse

In the distance, positioned near the lighthouse, lies the scuttled British blockship HMS Intrepid. Her silhouette is unmistakable: a large, inert mass resting exactly where she was deliberately sunk during the raid. Intrepid, along with HMS Iphigenia, was one of the vessels chosen to block the harbour entrance by being scuttled across the channel.

From this vantage point, Intrepid appears almost ghostly — a silent witness to the night’s events, her mission complete. The photograph captures her in situ before salvage operations or natural decay altered her appearance, making this image an important historical record.

The Importance of This Photograph

This image is significant for several reasons:

It documents bomb damage to one of the most strategically important structures on the Belgian coast.
It captures a British submarine casualty, offering a rare view of wartime losses at the Mole.
It shows active salvage operations, revealing how quickly the harbour was being cleared.
It includes a distant but clear view of HMS Intrepid, one of the most famous blockships of the Zeebrugge Raid.

It preserves a moment in time when the Mole bore the fresh scars of battle.

Together, these elements make the photograph a valuable piece of visual history, helping us understand the scale, impact and aftermath of the Zeebrugge Raid.

Naval Mechanics on the Zeebrugge Mole, 1918

Take a look at this rare photograph my father picked up at a flea market.

It shows an extended view along the Zeebrugge Mole in 1918. This suggests a quiet moment in the aftermath of the Zeebrugge Raid. Three men stand on the concrete structure, their oil‑soiled clothing, caps and relaxed posture suggesting they are naval mechanics — the skilled workers responsible for maintaining machinery, weapons and equipment along this heavily fortified harbour.

Army mechanics on the Mole after the Zeebrugge Raid 1918
Naval Mechanics on the Zeebrugge Mole, 1918

Unlike the dramatic images of the raid itself, this photograph reveals the human side of wartime labour: the men who kept the guns firing, the engines running and the Mole operational during one of the most turbulent periods of the First World War.

A Rare Glimpse of Daily Life After the Raid

The men look up toward the photographer with an easy, unguarded attitude. Their expressions and stance suggest a moment of pause rather than urgency. This relaxed atmosphere, combined with the absence of active combat around them, indicates that the Zeebrugge Raid of St George’s Day, 23 April 1918, has already taken place.

The Mole, once filled with smoke, gunfire and the chaos of battle, now appears calm. Yet the photograph still carries the weight of what happened here — a site that only hours or days earlier had been the centre of a fierce naval assault.

Oil‑Stained Clothing and Empty Shell Cases

The mechanics’ clothing tells its own story. Their jackets and trousers are marked with oil and grime, typical of men who worked with engines, machinery and heavy equipment. These were the individuals who repaired guns, serviced searchlights, maintained engines and ensured the Mole’s defences remained functional.

An empty shell case lies nearby, a silent reminder of the recent fighting. Its presence reinforces the idea that the raid has passed, leaving behind the debris of battle and the workers tasked with restoring order.

The Zeebrugge Mole as a Wartime Workplace

The Mole was not just a defensive structure — it was a workplace. Mechanics, engineers, signalmen and gunners all operated along its length. This photograph captures that reality: the Mole as a living, functioning environment where men carried out essential tasks far from the front lines yet still within reach of danger.

The extended view in the background shows the vastness of the Mole, stretching out toward the harbour and the open sea. This perspective helps convey its strategic importance as a base for German naval operations, particularly for U‑boats and destroyers.

Tuesday, 1 March 2016

Bomb Damaged Submarine Shelters on the Mole near Zeebrugge

This rare photograph bought from a flea-market shows the German submarine shelters built along the Zeebrugge Mole in 1918. Notice clear signs of bomb damage caused by the British raid of Zeebrugge on 23 April of that year. These sturdy shelters were designed to shield U‑boats and smaller naval craft from aerial attack and shellfire, making them a vital part of the German defensive network along the Belgian coast.

The image reveals the aftermath of the raid: shattered concrete, exposed structural elements and debris scattered over the Mole. These scars embody the force of the British assault and the strategic importance of the Mole as a base for German naval operations.

German Submarine bomb damage on the Mole
German Submarine bomb damage on the Mole

Craters, Barbed Wire and Broken Concrete

visible damage to the shelters can be seen — fractured walls, fallen sections and bomb craters marking the surface. The Mole was heavily fortified, and these shelters were built to withstand significant force, so the destruction seen here speaks of the scale of the bombardment.

Barbed wire defences run along the Mole, forming a protective barrier against landing parties. The wire coils, still intact in places, emphasise the Mole’s role as both a harbour structure and a defensive stronghold.

A Path Through the Defences: Trails Between Barbed Wire

A narrow trail can be seen leading between the barbed wire defences. This path would have been used by German personnel moving between gun positions, shelters and observation posts. Its presence adds a human dimension to the photograph, hinting at the daily routines of the men stationed here.

The trail also convey the scale of the Mole — a vast concrete structure stretching far out into the sea, lined with defensive positions and essential wartime infrastructure.

Blockships in the Distance: Intrepid and Thetis

In the distance, on the left side of the photograph, the scuttled blockship HMS Intrepid can just be seen. Her silhouette lies low in the water, marking the spot where she was deliberately sunk during the raid to block the harbour entrance.

At the centre of the photo sits HMS Thetis, another British vessel used in the operation. Thetis was intended to lead the blockship group but came under heavy fire and was scuttled earlier than planned. Her presence in this photograph provides a rare visual record of her final resting place.

Together, these two vessels form a powerful reminder of the raid’s objective: to obstruct the Bruges–Zeebrugge canal route used by German U‑boats.