Sixth Fleet (IJN)
E750895
The Sixth Fleet (IJN) was the Imperial Japanese Navy’s primary submarine fleet during World War II, responsible for conducting long-range undersea warfare and reconnaissance operations across the Pacific.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Japanese 6th Fleet | 1 |
| Sixth Fleet (IJN) canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T8698244 — 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: Sixth Fleet (IJN) Context triple: [Imperial Japanese Navy submarine force, notableUnit, Sixth Fleet (IJN)]
-
A.
Japanese 4th Fleet
The Japanese 4th Fleet was a formation of the Imperial Japanese Navy that operated primarily in the Pacific, notably tasked with defense and patrol duties among Japan’s mandated islands before and during the early stages of World War II.
-
B.
Second Fleet (Imperial Japanese Navy)
The Second Fleet of the Imperial Japanese Navy was a major operational fleet formation that served as Japan’s principal mobile striking force in several key naval campaigns before and during World War II.
-
C.
Japanese 8th Fleet
The Japanese 8th Fleet was a major Imperial Japanese Navy formation in World War II, primarily responsible for operations in the South Pacific, including the Solomon Islands campaign.
-
D.
Third Fleet
The Third Fleet is a major operational formation of the United States Navy responsible for naval forces and operations in the eastern and central Pacific Ocean.
-
E.
Seventh Fleet
The Seventh Fleet is a major operational formation of the United States Navy responsible for naval forces and operations in the Western Pacific and Indian Ocean regions.
- 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: Sixth Fleet (IJN) Target entity description: The Sixth Fleet (IJN) was the Imperial Japanese Navy’s primary submarine fleet during World War II, responsible for conducting long-range undersea warfare and reconnaissance operations across the Pacific.
-
A.
Japanese 4th Fleet
The Japanese 4th Fleet was a formation of the Imperial Japanese Navy that operated primarily in the Pacific, notably tasked with defense and patrol duties among Japan’s mandated islands before and during the early stages of World War II.
-
B.
Second Fleet (Imperial Japanese Navy)
The Second Fleet of the Imperial Japanese Navy was a major operational fleet formation that served as Japan’s principal mobile striking force in several key naval campaigns before and during World War II.
-
C.
Japanese 8th Fleet
The Japanese 8th Fleet was a major Imperial Japanese Navy formation in World War II, primarily responsible for operations in the South Pacific, including the Solomon Islands campaign.
-
D.
Third Fleet
The Third Fleet is a major operational formation of the United States Navy responsible for naval forces and operations in the eastern and central Pacific Ocean.
-
E.
Seventh Fleet
The Seventh Fleet is a major operational formation of the United States Navy responsible for naval forces and operations in the Western Pacific and Indian Ocean regions.
- F. None of above. chosen
Statements (41)
| Predicate | Object |
|---|---|
| instanceOf | Imperial Japanese Navy fleet ⓘ |
| allegiance |
Imperial Japanese government
ⓘ
linked to:
Imperial Japan
|
| branch | submarine arm of the Imperial Japanese Navy ⓘ |
| conflict | World War II ⓘ |
| country |
Empire of Japan
ⓘ
linked to:
Japan
|
| doctrine |
long-range independent submarine operations
ⓘ
support of major fleet actions through reconnaissance ⓘ |
| engagementType |
commerce raiding
ⓘ
fleet reconnaissance ⓘ special operations transport ⓘ supply and reinforcement missions to isolated garrisons ⓘ support of carrier task forces ⓘ |
| historicalSignificance | main organization for Japanese submarine warfare in the Pacific during World War II ⓘ |
| notableAssetType |
I-class long-range submarines
ⓘ
submarine tenders ⓘ |
| notableLimitation |
increasing Allied anti-submarine warfare effectiveness
ⓘ
logistical constraints over vast ocean distances ⓘ |
| notableOperationType |
intelligence-gathering patrols
ⓘ
long-range patrols against Allied shipping ⓘ |
| operationalArea |
Central Pacific
ⓘ
Indian Ocean ⓘ South Pacific ⓘ |
| opponent |
Allied merchant marine
ⓘ
Royal Australian Navy ⓘ Royal Navy ⓘ United States Navy ⓘ |
| partOf | Imperial Japanese Navy ⓘ |
| primaryFunction |
long-range undersea warfare
ⓘ
reconnaissance operations ⓘ |
| role | primary submarine force of the Imperial Japanese Navy ⓘ |
| serviceBranch | Navy ⓘ |
| status | disbanded ⓘ |
| successor |
Japan Maritime Self-Defense Force submarine units
ⓘ
linked to:
JMSDF Submarine Flotilla
|
| theater |
Pacific Ocean
ⓘ
Pacific War ⓘ |
| timePeriod |
Pacific War (1941–1945)
ⓘ
linked to:
Pacific War
|
| usedPlatformType |
midget submarines
ⓘ
ocean-going submarines ⓘ submarine-launched reconnaissance seaplanes ⓘ |
| usedWeaponType |
deck guns
ⓘ
torpedoes ⓘ |
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: Sixth Fleet (IJN) Description of subject: The Sixth Fleet (IJN) was the Imperial Japanese Navy’s primary submarine fleet during World War II, responsible for conducting long-range undersea warfare and reconnaissance operations across the Pacific.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Sixth Fleet (IJN)