Operation Cedar Falls
E558479
Operation Cedar Falls was a major 1967 U.S. and South Vietnamese military offensive during the Vietnam War aimed at clearing Viet Cong forces and infrastructure from the Iron Triangle region northwest of Saigon.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Operation Cedar Falls canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5978989 — 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 Cedar Falls Context triple: [Cu Chi tunnels, targetOf, Operation Cedar Falls]
-
A.
Operation Fulcrum
Operation Fulcrum was a U.S. nuclear weapons test series conducted as part of the broader American nuclear testing program during the Cold War.
-
B.
Operation Woodrose
Operation Woodrose was a large-scale Indian Army crackdown in Punjab in 1984 targeting suspected Sikh militants and sympathizers in the aftermath of Operation Blue Star.
-
C.
Operation Emery
Operation Emery was a series of underground nuclear tests conducted by the United States as part of its Cold War-era nuclear weapons development program.
-
D.
Operation Spring
Operation Spring was a Canadian-led World War II offensive in July 1944 aimed at capturing key positions south of Caen during the Normandy campaign.
-
E.
Operation Jericho
Operation Jericho was a daring low-level Allied air raid in 1944 targeting Amiens Prison in German-occupied France to breach its walls and free Resistance prisoners.
- 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 Cedar Falls Target entity description: Operation Cedar Falls was a major 1967 U.S. and South Vietnamese military offensive during the Vietnam War aimed at clearing Viet Cong forces and infrastructure from the Iron Triangle region northwest of Saigon.
-
A.
Operation Fulcrum
Operation Fulcrum was a U.S. nuclear weapons test series conducted as part of the broader American nuclear testing program during the Cold War.
-
B.
Operation Woodrose
Operation Woodrose was a large-scale Indian Army crackdown in Punjab in 1984 targeting suspected Sikh militants and sympathizers in the aftermath of Operation Blue Star.
-
C.
Operation Emery
Operation Emery was a series of underground nuclear tests conducted by the United States as part of its Cold War-era nuclear weapons development program.
-
D.
Operation Spring
Operation Spring was a Canadian-led World War II offensive in July 1944 aimed at capturing key positions south of Caen during the Normandy campaign.
-
E.
Operation Jericho
Operation Jericho was a daring low-level Allied air raid in 1944 targeting Amiens Prison in German-occupied France to breach its walls and free Resistance prisoners.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
military operation
ⓘ
search and destroy operation ⓘ |
| aimedAt | Viet Cong stronghold known as the Iron Triangle ⓘ |
| belligerent |
Army of the Republic of Vietnam
NERFINISHED
ⓘ
People's Army of Vietnam NERFINISHED ⓘ United States Army ⓘ Viet Cong NERFINISHED ⓘ |
| civilianImpact | significant civilian displacement ⓘ |
| codeName | Operation Cedar Falls NERFINISHED ⓘ |
| commander |
Jonathan O. Seaman
NERFINISHED
ⓘ
William E. DePuy NERFINISHED ⓘ |
| conflict | Vietnam War ⓘ |
| consequence |
forced relocation of thousands of civilians
ⓘ
large-scale destruction of villages in the Iron Triangle ⓘ |
| countryInvolved |
South Vietnam
NERFINISHED
ⓘ
United States of America ⓘ
surface form:
United States
|
| endDate | 1967-01-26 ⓘ |
| followedBy | Operation Junction City NERFINISHED ⓘ |
| location |
Bình Dương Province
NERFINISHED
ⓘ
Hậu Nghĩa Province NERFINISHED ⓘ Iron Triangle NERFINISHED ⓘ northwest of Saigon ⓘ |
| method |
airmobile assaults
ⓘ
extensive use of artillery and air support ⓘ large-scale ground sweep ⓘ |
| notableFeature | combined U.S.–ARVN offensive northwest of Saigon ⓘ |
| objective |
clear Viet Cong forces from the Iron Triangle
ⓘ
destroy Viet Cong infrastructure and base areas ⓘ disrupt Viet Cong operations near Saigon ⓘ |
| opponent |
People's Army of Vietnam
NERFINISHED
ⓘ
Viet Cong NERFINISHED ⓘ |
| partOf | U.S. military operations in the Vietnam War ⓘ |
| precededBy | earlier U.S. search and destroy operations in III Corps Tactical Zone ⓘ |
| result |
U.S. and South Vietnamese operational success
ⓘ
Viet Cong forces temporarily displaced from Iron Triangle ⓘ |
| scale | one of the largest U.S. ground operations of early 1967 ⓘ |
| startDate | 1967-01-08 ⓘ |
| strategicRegion | III Corps Tactical Zone NERFINISHED ⓘ |
| theater | South Vietnam NERFINISHED ⓘ |
| timePeriod | January 1967 ⓘ |
| unitInvolved |
11th Armored Cavalry Regiment (United States)
NERFINISHED
ⓘ
173rd Airborne Brigade (United States) NERFINISHED ⓘ 196th Light Infantry Brigade (United States) NERFINISHED ⓘ 1st Infantry Division (United States) NERFINISHED ⓘ 25th Infantry Division (United States) NERFINISHED ⓘ Army of the Republic of Vietnam units NERFINISHED ⓘ |
| year | 1967 ⓘ |
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 Cedar Falls Description of subject: Operation Cedar Falls was a major 1967 U.S. and South Vietnamese military offensive during the Vietnam War aimed at clearing Viet Cong forces and infrastructure from the Iron Triangle region northwest of Saigon.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.