1st Battalion, 20th Infantry Regiment
E570496
The 1st Battalion, 20th Infantry Regiment is a U.S. Army infantry battalion with a history of service in multiple major conflicts as part of the 20th Infantry Regiment.
All labels observed (3)
| Label | Occurrences |
|---|---|
| 1st Battalion, 20th Infantry Regiment canonical | 5 |
| Company A, 1st Battalion, 20th Infantry Regiment | 1 |
| Company B, 1st Battalion, 20th Infantry Regiment | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T6124151 — 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: 1st Battalion, 20th Infantry Regiment Context triple: [Company C, 1st Battalion, 20th Infantry Regiment, partOf, 1st Battalion, 20th Infantry Regiment]
-
A.
Company C, 1st Battalion, 20th Infantry Regiment
Company C, 1st Battalion, 20th Infantry Regiment was a U.S. Army infantry company in the Vietnam War, historically infamous for its central role in the 1968 My Lai massacre.
-
B.
2nd Battalion, 23rd Infantry Regiment
The 2nd Battalion, 23rd Infantry Regiment is a U.S. Army infantry battalion that serves as a maneuver element within the 23rd Infantry Regiment, participating in combat and training operations as part of larger brigade and division formations.
-
C.
2nd Battalion, 121st Infantry Regiment
The 2nd Battalion, 121st Infantry Regiment is a U.S. Army National Guard infantry battalion from Georgia that provides trained combat forces for state and federal missions.
-
D.
1st Battalion, 121st Infantry Regiment
The 1st Battalion, 121st Infantry Regiment is an infantry battalion of the Georgia Army National Guard that provides trained ground combat forces for state and federal missions.
-
E.
3rd Battalion, 23rd Infantry Regiment
The 3rd Battalion, 23rd Infantry Regiment is a battalion-sized unit of the United States Army’s 23rd Infantry Regiment, historically involved in major American military operations as part of a larger infantry formation.
- 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: 1st Battalion, 20th Infantry Regiment Target entity description: The 1st Battalion, 20th Infantry Regiment is a U.S. Army infantry battalion with a history of service in multiple major conflicts as part of the 20th Infantry Regiment.
-
A.
Company C, 1st Battalion, 20th Infantry Regiment
Company C, 1st Battalion, 20th Infantry Regiment was a U.S. Army infantry company in the Vietnam War, historically infamous for its central role in the 1968 My Lai massacre.
-
B.
2nd Battalion, 23rd Infantry Regiment
The 2nd Battalion, 23rd Infantry Regiment is a U.S. Army infantry battalion that serves as a maneuver element within the 23rd Infantry Regiment, participating in combat and training operations as part of larger brigade and division formations.
-
C.
2nd Battalion, 121st Infantry Regiment
The 2nd Battalion, 121st Infantry Regiment is a U.S. Army National Guard infantry battalion from Georgia that provides trained combat forces for state and federal missions.
-
D.
1st Battalion, 121st Infantry Regiment
The 1st Battalion, 121st Infantry Regiment is an infantry battalion of the Georgia Army National Guard that provides trained ground combat forces for state and federal missions.
-
E.
3rd Battalion, 23rd Infantry Regiment
The 3rd Battalion, 23rd Infantry Regiment is a battalion-sized unit of the United States Army’s 23rd Infantry Regiment, historically involved in major American military operations as part of a larger infantry formation.
- F. None of above. chosen
Statements (25)
| Predicate | Object |
|---|---|
| instanceOf |
United States Army unit
ⓘ
infantry battalion ⓘ |
| allegiance |
United States
ⓘ
linked to:
United States of America
|
| branch | United States Army ⓘ |
| conflict |
Global War on Terrorism
ⓘ
Iraq War ⓘ Vietnam War ⓘ War in Afghanistan (2001–2021) ⓘ |
| country | United States of America ⓘ |
| garrisonLabel | garrison ⓘ |
| hasLineage | 20th Infantry Regiment ⓘ |
| hasNationality | American military unit ⓘ |
| hasRegimentalAffiliation | 20th Infantry Regiment ⓘ |
| hasSubordination | 20th Infantry Regiment ⓘ |
| militaryFormationSize | battalion ⓘ |
| militaryFunction | ground combat operations ⓘ |
| militaryRole | infantry ⓘ |
| notableFor | service in multiple major conflicts ⓘ |
| operatesIn | land warfare domain ⓘ |
| parentUnit |
United States Army Infantry Branch
ⓘ
linked to:
Infantry Branch
|
| partOf |
20th Infantry Regiment
ⓘ
United States Army infantry forces ⓘ |
| service | United States Army ⓘ |
| serviceBranch |
U.S. Army
ⓘ
linked to:
United States Army
|
| type | infantry ⓘ |
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: 1st Battalion, 20th Infantry Regiment Description of subject: The 1st Battalion, 20th Infantry Regiment is a U.S. Army infantry battalion with a history of service in multiple major conflicts as part of the 20th Infantry Regiment.
Referenced by (7)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: 1st Battalion, 20th Infantry Regiment
linked to: 1st Battalion, 20th Infantry Regiment