Operation MI
E25346
Operation MI was the Imperial Japanese Navy’s World War II plan to seize Midway Atoll, culminating in the pivotal Battle of Midway in June 1942.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Operation MI canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T58593 — 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 MI Context triple: [Imperial Japanese Navy, notableOperation, Operation MI]
-
A.
Operation Z
Operation Z was the Imperial Japanese Navy’s codename for the 1941 carrier-based attack plan on Pearl Harbor that launched Japan into war with the United States in World War II.
-
B.
Operation Banner
Operation Banner was the British Army’s long-running military deployment in Northern Ireland during the Troubles, focused on counterinsurgency and internal security operations.
-
C.
Operation Koltso
Operation Koltso was the final Soviet offensive in early 1943 that encircled and destroyed the remaining German 6th Army at Stalingrad, effectively ending the battle.
-
D.
Operation Vittles
Operation Vittles was the U.S. military’s codename for its large-scale air supply effort to deliver food, fuel, and other essentials to West Berlin during the Berlin Airlift of 1948–1949.
-
E.
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.
- 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 MI Target entity description: Operation MI was the Imperial Japanese Navy’s World War II plan to seize Midway Atoll, culminating in the pivotal Battle of Midway in June 1942.
-
A.
Operation Z
Operation Z was the Imperial Japanese Navy’s codename for the 1941 carrier-based attack plan on Pearl Harbor that launched Japan into war with the United States in World War II.
-
B.
Operation Banner
Operation Banner was the British Army’s long-running military deployment in Northern Ireland during the Troubles, focused on counterinsurgency and internal security operations.
-
C.
Operation Koltso
Operation Koltso was the final Soviet offensive in early 1943 that encircled and destroyed the remaining German 6th Army at Stalingrad, effectively ending the battle.
-
D.
Operation Vittles
Operation Vittles was the U.S. military’s codename for its large-scale air supply effort to deliver food, fuel, and other essentials to West Berlin during the Berlin Airlift of 1948–1949.
-
E.
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.
- F. None of above. chosen
Statements (45)
| Predicate | Object |
|---|---|
| instanceOf |
military operation
ⓘ
naval operation ⓘ |
| alsoKnownAs |
Midway Operation
ⓘ
linked to:
Battle of Midway
|
| belligerent |
Empire of Japan
ⓘ
linked to:
Japan
|
| codeName | MI ⓘ |
| commandedBy | Isoroku Yamamoto ⓘ |
| conflict | World War II ⓘ |
| country | Japan ⓘ |
| culminatedIn | Battle of Midway ⓘ |
| followedBy | Japanese defensive operations in the Central Pacific ⓘ |
| hasPart |
amphibious landing plan on Midway Atoll
ⓘ
carrier air attacks on Midway ⓘ diversionary operations in the Aleutian Islands ⓘ |
| impact | turning point in the Pacific War ⓘ |
| intelligenceContext | U.S. codebreaking of Japanese naval communications (JN-25) ⓘ |
| involvedShipType |
aircraft carrier
ⓘ
battleship ⓘ cruiser ⓘ destroyer ⓘ submarine ⓘ |
| involvedUnit |
Combined Fleet
ⓘ
First Air Fleet ⓘ |
| location |
Central Pacific Ocean
ⓘ
Midway Atoll ⓘ |
| navalForceCommander | Chuichi Nagumo ⓘ |
| objective |
destruction of United States Pacific Fleet aircraft carriers
ⓘ
seizure of Midway Atoll ⓘ |
| opposedBy | United States Navy ⓘ |
| partOf | Pacific War ⓘ |
| plannedBy | Imperial Japanese Navy ⓘ |
| plannedLandingDate | 1942-06-07 ⓘ |
| planningYear | 1942 ⓘ |
| precededBy |
Japanese conquest of Southeast Asia and the Western Pacific
ⓘ
linked to:
Japanese conquest of Southeast Asia
|
| relatedOperation | Operation AL ⓘ |
| result |
Japanese defeat at the Battle of Midway
ⓘ
cancellation of Japanese invasion of Midway ⓘ |
| startTime | 1942-06 ⓘ |
| strategicGoal |
extension of Japanese defensive perimeter in the Pacific
ⓘ
luring U.S. carriers into decisive battle ⓘ |
| tacticalElement |
carrier-based air strikes on Midway Island defenses
ⓘ
submarine picket line deployment ⓘ use of seaplanes for reconnaissance ⓘ |
| target | U.S. Pacific Fleet ⓘ |
| theater |
Pacific Ocean theater of World War II
ⓘ
linked to:
Pacific War
|
| timePeriod | June 1942 ⓘ |
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 MI Description of subject: Operation MI was the Imperial Japanese Navy’s World War II plan to seize Midway Atoll, culminating in the pivotal Battle of Midway in June 1942.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.