Operation Michael
E423460
Operation Michael was a major German offensive launched on the Western Front in March 1918, aiming to break through Allied lines before American forces could fully deploy in World War I.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Operation Michael canonical | 6 |
| Michael Offensive | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4201075 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Operation Michael Context triple: [German Spring Offensive (1918), componentOperation, Operation Michael]
-
A.
Operation Decisive Storm
Operation Decisive Storm was the initial Saudi-led military air campaign launched in 2015 against Houthi forces in Yemen.
-
B.
Operation Weeting
Operation Weeting was a major Metropolitan Police investigation into widespread phone hacking by journalists at the now-defunct News of the World newspaper.
-
C.
Operation Cobra
Operation Cobra was a major Allied offensive launched by U.S. forces in July 1944 to break out of the Normandy beachhead and rapidly advance across German-occupied France.
-
D.
Operation Infatuate
Operation Infatuate was a World War II Allied amphibious assault in November 1944 aimed at capturing the heavily fortified Dutch island of Walcheren to secure access to the port of Antwerp.
-
E.
August Storm
August Storm was the codename for the Soviet Union’s massive 1945 offensive against Japanese forces in Manchuria during the final days of World War II.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Operation Michael Target entity description: Operation Michael was a major German offensive launched on the Western Front in March 1918, aiming to break through Allied lines before American forces could fully deploy in World War I.
-
A.
Operation Decisive Storm
Operation Decisive Storm was the initial Saudi-led military air campaign launched in 2015 against Houthi forces in Yemen.
-
B.
Operation Weeting
Operation Weeting was a major Metropolitan Police investigation into widespread phone hacking by journalists at the now-defunct News of the World newspaper.
-
C.
Operation Cobra
Operation Cobra was a major Allied offensive launched by U.S. forces in July 1944 to break out of the Normandy beachhead and rapidly advance across German-occupied France.
-
D.
Operation Infatuate
Operation Infatuate was a World War II Allied amphibious assault in November 1944 aimed at capturing the heavily fortified Dutch island of Walcheren to secure access to the port of Antwerp.
-
E.
August Storm
August Storm was the codename for the Soviet Union’s massive 1945 offensive against Japanese forces in Manchuria during the final days of World War II.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
German military operation
ⓘ
military offensive ⓘ |
| aim |
to achieve victory before full American deployment
ⓘ
to break through Allied lines ⓘ to defeat the British Expeditionary Force ⓘ to split British and French armies ⓘ |
| alsoKnownAs |
Michael Offensive
ⓘ
linked to:
Operation Michael
|
| belligerent | German Empire ⓘ |
| casualties | heavy on both sides ⓘ |
| commander |
Erich Ludendorff
ⓘ
Paul von Hindenburg ⓘ |
| conflict | World War I ⓘ |
| dateContext | final year of World War I ⓘ |
| endDate | 1918-04-05 ⓘ |
| followedBy |
Operation Georgette
ⓘ
subsequent German Spring Offensive operations ⓘ |
| frontLength | about 50 miles ⓘ |
| involvedForce |
British Fifth Army
ⓘ
British Third Army ⓘ
linked to:
Third Army (United Kingdom)
French reserves ⓘ German 17th Army ⓘ German 18th Army ⓘ German 2nd Army ⓘ |
| location |
Picardy
ⓘ
Somme sector ⓘ
linked to:
Somme region
Western Front ⓘ northern France ⓘ |
| notableBattle |
Battle of Rosières
ⓘ
Battle of Saint-Quentin (1918) ⓘ Battle of the Avre ⓘ |
| opposedBy |
British Empire
ⓘ
French Third Republic ⓘ United States ⓘ
linked to:
United States of America
|
| opposedCommander |
Douglas Haig
ⓘ
Philippe Pétain ⓘ |
| partOf |
Kaiserschlacht
ⓘ
Spring Offensive ⓘ
linked to:
German Spring Offensive (1918)
|
| precededBy | Russian withdrawal from World War I ⓘ |
| result |
Allied defensive success in preventing breakthrough
ⓘ
German tactical gains ⓘ strategic failure for Germany ⓘ |
| startDate | 1918-03-21 ⓘ |
| strategicSignificance |
contributed to exhaustion of German Army
ⓘ
last major German offensive on the Western Front ⓘ |
| usedTactics |
infiltration tactics
ⓘ
stormtrooper tactics ⓘ |
| usedWeapons |
heavy artillery
ⓘ
poison gas ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Operation Michael Description of subject: Operation Michael was a major German offensive launched on the Western Front in March 1918, aiming to break through Allied lines before American forces could fully deploy in World War I.
Referenced by (7)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Operation Michael