31st Marine Expeditionary Unit
E69536
The 31st Marine Expeditionary Unit is a forward-deployed, amphibious Marine Air-Ground Task Force based in the Indo-Pacific region, specializing in rapid crisis response and expeditionary operations.
All labels observed (2)
| Label | Occurrences |
|---|---|
| 31st Marine Expeditionary Unit canonical | 5 |
| 31st MEU | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T484965 — 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: 31st Marine Expeditionary Unit Context triple: [III Marine Expeditionary Force, subordinateUnit, 31st Marine Expeditionary Unit]
-
A.
24th Marine Expeditionary Unit
The 24th Marine Expeditionary Unit is a rapid-response, sea-based U.S. Marine Corps task force capable of conducting amphibious operations, crisis response, and limited contingency missions worldwide.
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B.
26th Marine Expeditionary Unit
The 26th Marine Expeditionary Unit is a rapid-response, sea-based U.S. Marine Corps air-ground task force capable of conducting amphibious operations, crisis response, and limited contingency missions worldwide.
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C.
22nd Marine Expeditionary Unit
The 22nd Marine Expeditionary Unit is a U.S. Marine Corps rapid-response, sea-based air-ground task force capable of conducting amphibious operations, crisis response, and limited contingency missions worldwide.
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D.
3rd Marine Expeditionary Brigade
The 3rd Marine Expeditionary Brigade is a forward-deployed, rapidly deployable U.S. Marine Corps air-ground task force focused on crisis response and amphibious operations in the Indo-Pacific region.
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E.
III Marine Expeditionary Force
III Marine Expeditionary Force is a forward-deployed, Pacific-focused Marine Air-Ground Task Force responsible for rapid crisis response, deterrence, and combat operations in support of U.S. and allied interests in the Indo-Pacific region.
- 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: 31st Marine Expeditionary Unit Target entity description: The 31st Marine Expeditionary Unit is a forward-deployed, amphibious Marine Air-Ground Task Force based in the Indo-Pacific region, specializing in rapid crisis response and expeditionary operations.
-
A.
24th Marine Expeditionary Unit
The 24th Marine Expeditionary Unit is a rapid-response, sea-based U.S. Marine Corps task force capable of conducting amphibious operations, crisis response, and limited contingency missions worldwide.
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B.
26th Marine Expeditionary Unit
The 26th Marine Expeditionary Unit is a rapid-response, sea-based U.S. Marine Corps air-ground task force capable of conducting amphibious operations, crisis response, and limited contingency missions worldwide.
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C.
22nd Marine Expeditionary Unit
The 22nd Marine Expeditionary Unit is a U.S. Marine Corps rapid-response, sea-based air-ground task force capable of conducting amphibious operations, crisis response, and limited contingency missions worldwide.
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D.
3rd Marine Expeditionary Brigade
The 3rd Marine Expeditionary Brigade is a forward-deployed, rapidly deployable U.S. Marine Corps air-ground task force focused on crisis response and amphibious operations in the Indo-Pacific region.
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E.
III Marine Expeditionary Force
III Marine Expeditionary Force is a forward-deployed, Pacific-focused Marine Air-Ground Task Force responsible for rapid crisis response, deterrence, and combat operations in support of U.S. and allied interests in the Indo-Pacific region.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
Marine Air-Ground Task Force
ⓘ
Marine Expeditionary Unit ⓘ military unit ⓘ |
| abbreviation |
31st MEU
ⓘ
linked to:
31st Marine Expeditionary Unit
|
| capability |
air assault operations
ⓘ
amphibious assault operations ⓘ limited duration, limited scale operations across the range of military operations ⓘ sea-based power projection ⓘ |
| component |
Aviation Combat Element
ⓘ
Command Element ⓘ Ground Combat Element ⓘ Logistics Combat Element ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| deploymentStatus | forward-deployed ⓘ |
| doctrine |
Marine Air-Ground Task Force concept
ⓘ
linked to:
Marine Air-Ground Task Forces
|
| garrison |
Camp Courtney
ⓘ
Camp Hansen ⓘ Okinawa Prefecture ⓘ |
| higherCommand | United States Indo-Pacific Command ⓘ |
| mission |
conduct amphibious operations
ⓘ
conduct disaster relief ⓘ conduct humanitarian assistance ⓘ conduct noncombatant evacuation operations ⓘ provide forward presence ⓘ support contingency operations ⓘ support theater security cooperation ⓘ |
| nickname | America's Pacific Force in Readiness ⓘ |
| notableOperationType |
combat operations
ⓘ
evacuation operations ⓘ humanitarian assistance and disaster relief ⓘ maritime security operations ⓘ |
| operatesWith |
Amphibious Ready Group
ⓘ
linked to:
Expeditionary Strike Groups
United States Navy ⓘ |
| partOf | III Marine Expeditionary Force ⓘ |
| regionFocus |
First Island Chain
ⓘ
linked to:
Ryukyu Islands
Philippine Sea ⓘ South China Sea ⓘ |
| role |
amphibious warfare
ⓘ
expeditionary operations ⓘ forward-deployed force ⓘ rapid crisis response ⓘ |
| serviceBranch | United States Marine Corps ⓘ |
| theater |
East Asia
ⓘ
Indo-Pacific region ⓘ Western Pacific ⓘ
linked to:
western Pacific Ocean
|
| type | special operations capable (historical designation) ⓘ |
| typicalStrength | approximately 2200 Marines and sailors ⓘ |
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: 31st Marine Expeditionary Unit Description of subject: The 31st Marine Expeditionary Unit is a forward-deployed, amphibious Marine Air-Ground Task Force based in the Indo-Pacific region, specializing in rapid crisis response and expeditionary operations.
Referenced by (7)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: 31st Marine Expeditionary Unit
subject linked to:
Command Element
linked to: 31st Marine Expeditionary Unit