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Voormezele near Ypres in West-Vlaanderen, Flanders, Belgium — Northwestern Europe
 

De Ondergrondse Oorlog

 
 
De Ondergrondse Oorlog Marker image. Click for full size.
Photographed by Steve Stoessel, November 14, 2024
1. De Ondergrondse Oorlog Marker
Inscription.  
De stellingenoorlog waarin de oorlog eind 1914 belandde, liet de legers teruggrijpen naar oude belegeringstactieken. Eenerian was het onder mijnen van elkaars frontlijnen. Een hoogtepunt was de Mijnenslag van 7 juni 1917, toen 19 grote mijnen onder de Duitse frontlijn tot ontploffing werden gebracht. Sommige springladingen wogen 30 ton. Maar de ondergrondse oorlog was al lang daarvoor begonnen. Franse, Duitse, Britse, Canadese en Australische troepen namen er aan deel. Soms diende ondermijning als aanvalswapen, soms ais verdediging van eigen stellingen of ondergrondse werken, soms ter vernietiging van vijandelijke tunnels.

The onset of trench warfare at the end of 1914 forced the armies of both sides to resort to the siege war tactics of a bygone age. One of these tactics was to place mines under enemy positions. This practice reached its apotheoses with the great Mine Battle of the Messines on June 7, 1917 when 19 large mines were exploded simultaneously under the German frontline. Some of these mines contained more than 30 tons of explosives. The underground war began much earlier. French, German, British, Canadian, and Australian troops were all skilled in mining operations. Sometimes the mines were used as a weapon of attack: sometimes as a weapon of defense to protect your own underground tunnels and destroy those of the enemy.

La guerre de position, qui commence à la fin de l'année 1914, force les armées à revenir vers des anciennes tactiques de guerre. L'une d'entre elle était de miner les lignes adverses. L'apogée est atteint lors de la bataille des mines du 7 juin 1917. Lorsque 13 grandes mines sont placées comme explosifs en dessus de la ligne de front allemande. Certains explosifs pesant jusqu'à 30 tonnes. Mais la guerre souterraine a déjà commencé bien avant. Les troupes françaises, allemandes, britanniques, canadiennes et australiennes y prennent part. Parfois les mines servent d'arme offensive, parfois d'arme pour défendre les positions ou les travaux souterrains ou encore parfois, elles sont utilisées pour détruire des tunnels ennemis.

Der Stellungskrieg, zu dem der Krieg Ende 1914 geworden war, ließ die Armeen auf alte Belagerungstaktiken zurückgreifen. Dazu zählte das Unterminieren der Frontlinien des Gegners. Ein Höhepunkt war die Minenschlacht vom 7. Juni 1917, als 19 große Minen unter der deutschen Frontlinie zur Explosion gebracht wurden. Manche Sprengladungen wogen 30 Tonnen. Doch der unterirdische Krieg hatte schon längst davor angefangen. Französische, deutsche, britische, kanadische und australische Truppen nahmen daran teil. Manchmal diente die Unterminierung als Angriffswaffe, manchmal zur Verteidigung eigener Stellungen oder unterirdischer Bauten, manchmal zur Zerstörung feindlicher Tunnel.

[Right Side]
Aas ter front si West-Vlaanderen tellen ne minstens 200 ante kleine Iepertboog zij er vief graten en drie kleinere aar se ondergrondse oorlog woedde. Vandaag zien hat dramatische getuigen in neer surlogslanddschem.

There are more than 200 mine craters along the front in West Flanders. In the “small” Ypres Salient, there are five major and three minor ones, testifying to the ferocity of the underground war. Today, the resulting craters are amongst the most dramatic features in the war landscape.

Sur le front locatif en Flandres occidentale, nous compte au moins 200 cratères mines. Dans le d’Ypres Saillant, sout existes cinq grande sites et trios plut petits ravages par la guerre souterraine. Aujourd’hui, et sort injuriés des dramatiques au paysage de guerre.

An der Front in Westflandern zählen wir mindestens 200 Minekrater. Im kleinen Ypembogen gibt es vier große und drei kleinen Sites, an denen der unterirdische krieg wütete. Heute sind sie dramatische Zeugin in der Kriegslandschaft.

[Photo Captions from left to right, in English, Dutch, French, and German]
Sint-Elooi
- More than 26 mine detonations between March 1915 and June 1917.
- Meer dan 26 mijnontploffingen tussen maart 1915 en juni 1917
- Plus de 26 détonations de mines entre mars 1915 et juin 1917
- Mehr als 26 Minenexplosionen zwichen März 1915 und Juni 1917

Hill 6O
- At least 27 mine craters, formed between December 1915 and June 1917.
- Minstens 27 mijnkraters, gevormd tussen December 1915 en juni 1917
- Au moins 27 cratères de mines, formés entre décembre 1915 et juin 1917.
- Mindestens 27 Minekrater, entstanden zwichen Dezember 1915 und Juni 1917.

l’Hoge
- Just three mines were blown, but on two occasions, this was followed by a successful infantry attack.
- Slechts drie mijnen ontploften. Maar bij twee gelegenheden werd dit gevolgd door een succesvolle infanterieaanval.
- Seulement trois mines ont explosé, mais à deux reprises, cela a été suivi d’une attaque d’infanterie réussie
- Nur drei Minen explodierten, aber in zwei Fällen folgte ein erfolgreicher Infanterieangriff.

. The Bluff
- At least 15 mine detonations dating from 1915 and 1916. - Minstens 15 mijnontploffingen daterend uit 1915 en 1916. - Au moins 15 détonations de mines datant de 1915 et 1916. - Mindestens 15 Mineexplosionen aus den Jahern 1915 und 1916

Bellewaarde Ridge & Railway Wood
- 36 mine craters formed between September 1915 and July 1917. - 36 mijnkraters gevormd tussen september 1915 en juli 1917. - 36 cratères de mines formes entre septembre 1915 et juillet 1917 - 36 Minenkrater entstanded zwischen September 1915 und Juli 1917.

Hill 62
< Sanctuary Wood
Armagh Wood

 
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This historical marker is listed in this topic list: War, World I. A significant historical date for this entry is June 7, 1917.
 
Location. 50° 48.89′ N, 2° 55.038′ E. Marker is near Ypres, Vlaanderen (Flanders), in West-Vlaanderen. It is in Voormezele. It can be reached from Palingbeekstraat. Marker is on the foot trail that circles the park. Touch for map. Marker is at or near this postal address: Palingbeekstraat 18, Ypres, Vlaanderen 8902, Belgium. Touch for directions.

Regionally, it is in Europe, the European Union, Atlantic Europe, the Benelux Low Countries, the Schengen Area, Western Europe, and the Western World. Historically, it finds itself in what was once the Roman Empire and specifically also the Holy Roman Empire.

Other nearby markers. At least 8 other markers are within walking distance of this marker: The Bluff in the 'Palingbeek' provincial park (a few steps from this marker); Kraterwand The Bluff 1916 (about 120 meters away, measured in a direct line); The Frontline at the Bluff, 1915 (about 180 meters away); Pierre Marchand Lucien Olivier (approx. 1.3 kilometers away); 15th Battalion Canadian Infantry (approx. 1.3 kilometers
De Ondergrondse Oorlog Marker image. Click for full size.
Photographed by Steve Stoessel, November 14, 2024
2. De Ondergrondse Oorlog Marker
away); In Memory of the 14th Light Division (approx. 1.3 kilometers away); Hill 60 (approx. 1.3 kilometers away); 1st Australian Tunneling Company (approx. 1.3 kilometers away). Touch for a list and map of all markers in Ypres.
 
More about this marker. This is a very large marker, situated beneath a shelter. It is difficult to get a shot of the whole marker. It is also part of a mixed media presentation -hence the shelter.
 
Also see . . .
1. WWI Mine Warfare. (Submitted on March 12, 2025, by Steve Stoessel of Niskayuna, New York.)
2. Canadian War Museum - Mine Warfare. (Submitted on March 12, 2025, by Steve Stoessel of Niskayuna, New York.)
3. Actions at The Bluff 1916 (Wikipedia). (Submitted on March 12, 2025, by Steve Stoessel of Niskayuna, New York.)
 
De Ondergrondse Oorlog Marker image. Click for full size.
Photographed by Steve Stoessel, November 14, 2024
3. De Ondergrondse Oorlog Marker
De Ondergrondse Oorlog Marker image. Click for full size.
Photographed by Steve Stoessel, November 14, 2024
4. De Ondergrondse Oorlog Marker
 
 
Credits. This page was last revised on April 29, 2025. It was originally submitted on February 25, 2025, by Steve Stoessel of Niskayuna, New York. This page has been viewed 95 times since then and 6 times this year. Photos:   1, 2. submitted on February 25, 2025, by Steve Stoessel of Niskayuna, New York.   3, 4. submitted on March 12, 2025, by Steve Stoessel of Niskayuna, New York.
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Jul. 28, 2026