31st Marine Expeditionary Unit

E69536

Marine Air-Ground Task Force Marine Expeditionary Unit military unit

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.

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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.
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.
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.
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.
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.
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.
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.
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.
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 Marine Expeditionary Unit self-linksurface differs ⓘ surface form: 31st MEU
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 of America ⓘ surface form: United States
deploymentStatus	forward-deployed ⓘ
doctrine	Marine Air-Ground Task Forces ⓘ surface form: Marine Air-Ground Task Force concept
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	Expeditionary Strike Groups ⓘ surface form: Amphibious Ready Group United States Navy ⓘ
partOf	III Marine Expeditionary Force ⓘ
regionFocus	Ryukyu Islands ⓘ surface form: First Island Chain 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 Ocean ⓘ surface form: Western Pacific
type	special operations capable (historical designation) ⓘ
typicalStrength	approximately 2200 Marines and sailors ⓘ

How these facts were elicited

Referenced by (7)

Full triples — surface form annotated when it differs from this entity's canonical label.

III Marine Expeditionary Force → subordinateUnit → 31st Marine Expeditionary Unit ⓘ

31st Marine Expeditionary Unit → abbreviation → 31st Marine Expeditionary Unit self-linksurface differs ⓘ

this entity surface form: 31st MEU

Camp Schwab → garrison → 31st Marine Expeditionary Unit ⓘ

Camp Hansen → hasGarrison → 31st Marine Expeditionary Unit ⓘ

Command Element → partOf → 31st Marine Expeditionary Unit ⓘ

subject surface form: Command Element, 31st Marine Expeditionary Unit

America's Pacific Force in Readiness → refersTo → 31st Marine Expeditionary Unit ⓘ

America's Pacific Force in Readiness → nicknameOf → 31st Marine Expeditionary Unit ⓘ