Operation Meetinghouse
E14092
Operation Meetinghouse was the devastating March 1945 U.S. firebombing raid on Tokyo, which became one of the most destructive air attacks in history.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Operation Meetinghouse canonical | 5 |
| Operation Meetinghouse was the single most destructive air raid of the Tokyo air raids | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1750 — 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 Meetinghouse Context triple: [World War II, hasPart, Operation Meetinghouse]
-
A.
Operation Crossbow
Operation Crossbow was a World War II Allied campaign of intelligence, bombing, and reconnaissance aimed at locating and destroying German V-weapon (V-1 and V-2) research, production, and launch sites.
-
B.
Operation Downfall
Operation Downfall was the Allied forces’ planned but never-executed invasion of the Japanese home islands near the end of World War II.
-
C.
Operation Blue
Operation Blue was the German Wehrmacht’s major 1942 summer offensive on the Eastern Front aimed at capturing the Soviet Union’s southern oil fields and securing strategic positions in the Caucasus.
-
D.
Operation Tidal Wave
Operation Tidal Wave was a major World War II Allied air raid targeting Romanian oil refineries at Ploiești in an effort to cripple Nazi Germany’s fuel supplies.
-
E.
Operation Avalanche
Operation Avalanche was the Allied amphibious invasion of mainland Italy at Salerno in September 1943, a key campaign that led to the downfall of Mussolini’s regime and opened a new front against Nazi Germany in Europe.
- 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 Meetinghouse Target entity description: Operation Meetinghouse was the devastating March 1945 U.S. firebombing raid on Tokyo, which became one of the most destructive air attacks in history.
-
A.
Operation Crossbow
Operation Crossbow was a World War II Allied campaign of intelligence, bombing, and reconnaissance aimed at locating and destroying German V-weapon (V-1 and V-2) research, production, and launch sites.
-
B.
Operation Downfall
Operation Downfall was the Allied forces’ planned but never-executed invasion of the Japanese home islands near the end of World War II.
-
C.
Operation Blue
Operation Blue was the German Wehrmacht’s major 1942 summer offensive on the Eastern Front aimed at capturing the Soviet Union’s southern oil fields and securing strategic positions in the Caucasus.
-
D.
Operation Tidal Wave
Operation Tidal Wave was a major World War II Allied air raid targeting Romanian oil refineries at Ploiești in an effort to cripple Nazi Germany’s fuel supplies.
-
E.
Operation Avalanche
Operation Avalanche was the Allied amphibious invasion of mainland Italy at Salerno in September 1943, a key campaign that led to the downfall of Mussolini’s regime and opened a new front against Nazi Germany in Europe.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
aerial bombing
ⓘ
firebombing raid ⓘ military operation ⓘ |
| aircraftType | heavy bomber ⓘ |
| aircraftUsed | B-29 Superfortress ⓘ |
| airForceUnit | Twentieth Air Force ⓘ |
| altitudeProfile | low-level attack ⓘ |
| areaDestroyed |
over 15 square miles of Tokyo
ⓘ
over 40 square kilometers of Tokyo ⓘ |
| belligerent |
Japan
ⓘ
surface form:
Empire of Japan
United States of America ⓘ
surface form:
United States
|
| bombLoad | primarily incendiary munitions ⓘ |
| city | Tokyo ⓘ |
| codename | Meetinghouse ⓘ |
| commander | Curtis LeMay ⓘ |
| conductedBy |
United States Army Air Forces
ⓘ
Twentieth Air Force ⓘ
surface form:
XXI Bomber Command
|
| conflict | World War II ⓘ |
| country | Japan ⓘ |
| countryTargeted | Japan ⓘ |
| date |
1945-03-09
ⓘ
1945-03-10 ⓘ |
| estimatedDeaths |
approximately 100,000 people
ⓘ
over 80,000 people ⓘ |
| estimatedHomeless | over 1,000,000 people ⓘ |
| followedBy | subsequent incendiary raids on Japanese cities ⓘ |
| historicalSignificance |
key event in the air campaign against Japan in 1945
ⓘ
major escalation in strategic bombing of Japan ⓘ |
| location | Tokyo ⓘ |
| militaryBranch | United States Army Air Forces ⓘ |
| notableAs |
deadliest single air raid of World War II by conventional bombing
ⓘ
one of the most destructive air raids in history ⓘ |
| objective | to destroy Tokyo’s urban industrial and residential areas ⓘ |
| partOf | Pacific War ⓘ |
| precededBy | high-altitude precision bombing of Japan ⓘ |
| result |
devastating firestorm in Tokyo
ⓘ
massive urban destruction ⓘ very high civilian casualties ⓘ |
| strategy |
area bombing
ⓘ
low-altitude night bombing ⓘ |
| targetCityDistrict | eastern Tokyo ⓘ |
| targetType |
civilian area
ⓘ
urban area ⓘ |
| theater |
Pacific War
ⓘ
surface form:
Pacific Theater of World War II
|
| timePeriod | night of 9–10 March 1945 ⓘ |
| weaponType |
incendiary bombs
ⓘ
napalm-based incendiaries ⓘ |
| year | 1945 ⓘ |
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 Meetinghouse Description of subject: Operation Meetinghouse was the devastating March 1945 U.S. firebombing raid on Tokyo, which became one of the most destructive air attacks in history.
Referenced by (6)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Operation Meetinghouse was the single most destructive air raid of the Tokyo air raids