2nd Battalion, 26th Marines
E460607
The 2nd Battalion, 26th Marines was a U.S. Marine Corps infantry battalion that saw notable combat service during the Vietnam War.
All labels observed (4)
| Label | Occurrences |
|---|---|
| 2nd Battalion, 26th Marines canonical | 1 |
| Company E, 2nd Battalion, 26th Marines | 1 |
| Company F, 2nd Battalion, 26th Marines | 1 |
| Company G, 2nd Battalion, 26th Marines | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4640253 — 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: 2nd Battalion, 26th Marines Context triple: [26th Marine Regiment, hasComponent, 2nd Battalion, 26th Marines]
-
A.
1st Battalion, 26th Marines
The 1st Battalion, 26th Marines was a U.S. Marine Corps infantry battalion that saw notable combat service during the Vietnam War.
-
B.
2nd Battalion, 6th Marines
The 2nd Battalion, 6th Marines is an infantry battalion of the United States Marine Corps known for its combat deployments and service in major conflicts throughout the 20th and 21st centuries.
-
C.
2nd Battalion, 1st Marines
The 2nd Battalion, 1st Marines is an infantry battalion of the United States Marine Corps known for its combat deployments and service in major conflicts as part of the 1st Marine Division.
-
D.
2nd Battalion, 7th Marines
The 2nd Battalion, 7th Marines is a U.S. Marine Corps infantry battalion renowned for its combat service in major conflicts from World War II through the Global War on Terror.
-
E.
2nd Battalion, 5th Marines
The 2nd Battalion, 5th Marines is a highly decorated infantry battalion of the United States Marine Corps known for its extensive combat history and distinguished service in major conflicts.
- 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: 2nd Battalion, 26th Marines Target entity description: The 2nd Battalion, 26th Marines was a U.S. Marine Corps infantry battalion that saw notable combat service during the Vietnam War.
-
A.
1st Battalion, 26th Marines
The 1st Battalion, 26th Marines was a U.S. Marine Corps infantry battalion that saw notable combat service during the Vietnam War.
-
B.
2nd Battalion, 6th Marines
The 2nd Battalion, 6th Marines is an infantry battalion of the United States Marine Corps known for its combat deployments and service in major conflicts throughout the 20th and 21st centuries.
-
C.
2nd Battalion, 1st Marines
The 2nd Battalion, 1st Marines is an infantry battalion of the United States Marine Corps known for its combat deployments and service in major conflicts as part of the 1st Marine Division.
-
D.
2nd Battalion, 7th Marines
The 2nd Battalion, 7th Marines is a U.S. Marine Corps infantry battalion renowned for its combat service in major conflicts from World War II through the Global War on Terror.
-
E.
2nd Battalion, 5th Marines
The 2nd Battalion, 5th Marines is a highly decorated infantry battalion of the United States Marine Corps known for its extensive combat history and distinguished service in major conflicts.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
United States Marine Corps unit
ⓘ
infantry battalion ⓘ |
| allegiance |
United States
ⓘ
linked to:
United States of America
|
| associatedConflict | Vietnam War ground combat operations ⓘ |
| associatedWith |
Marine Air‑Ground Task Force operations in Vietnam
ⓘ
linked to:
Marine Air-Ground Task Forces
|
| branchLabel |
USMC
ⓘ
linked to:
United States Marine Corps
|
| combatArm | infantry ⓘ |
| commandStructure | regimental combat team within 26th Marines ⓘ |
| conflict | Vietnam War ⓘ |
| country | United States of America ⓘ |
| doctrine | Marine Corps infantry doctrine ⓘ |
| engagement |
combat operations in I Corps Tactical Zone, South Vietnam
ⓘ
operations in northern South Vietnam ⓘ |
| era | Cold War ⓘ |
| function | conduct offensive and defensive infantry operations ⓘ |
| garrisonLabel | Headquarters and Service Company ⓘ |
| historicalPeriod |
1960s
ⓘ
early 1970s ⓘ |
| militaryBranch | United States Marine Corps ⓘ |
| militaryFormation | battalion‑sized infantry unit ⓘ |
| militaryRole | close combat with enemy ground forces ⓘ |
| nickname | 2/26 ⓘ |
| notableFor |
combat operations in Vietnam War
ⓘ
participation in major Marine Corps operations in Vietnam ⓘ |
| notableTheater | Southeast Asia ⓘ |
| operationalEnvironment |
counterinsurgency operations
ⓘ
jungle warfare ⓘ |
| partOf |
1st Marine Division
ⓘ
linked to:
1st Marine Division (United States)
26th Marine Regiment ⓘ |
| primaryWeapon |
crew‑served weapons
ⓘ
small arms ⓘ |
| role | infantry ⓘ |
| service |
United States Marine Corps Fleet Marine Force
ⓘ
linked to:
Fleet Marine Force
Vietnam War ⓘ |
| serviceBranch | United States Marine Corps ⓘ |
| serviceType | active duty ⓘ |
| size | battalion ⓘ |
| status | deactivated ⓘ |
| subunit |
Company E, 2nd Battalion, 26th Marines
ⓘ
linked to:
2nd Battalion, 26th Marines
Company F, 2nd Battalion, 26th Marines ⓘ
linked to:
2nd Battalion, 26th Marines
Company G, 2nd Battalion, 26th Marines ⓘ
linked to:
2nd Battalion, 26th Marines
Headquarters and Service Company, 2nd Battalion, 26th Marines ⓘ Weapons Company, 2nd Battalion, 26th Marines ⓘ |
| theater | Republic of Vietnam ⓘ |
| training |
amphibious assault operations
ⓘ
jungle and counterguerrilla warfare ⓘ |
| type | ground combat unit ⓘ |
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: 2nd Battalion, 26th Marines Description of subject: The 2nd Battalion, 26th Marines was a U.S. Marine Corps infantry battalion that saw notable combat service during the Vietnam War.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: 2nd Battalion, 26th Marines
linked to: 2nd Battalion, 26th Marines
linked to: 2nd Battalion, 26th Marines