US–UK Modus Vivendi of 1948
E290826
The US–UK Modus Vivendi of 1948 was a postwar agreement that redefined and limited nuclear cooperation between the United States and the United Kingdom, replacing the broader World War II–era arrangements on atomic collaboration.
All labels observed (4)
| Label | Occurrences |
|---|---|
| 1948 US–UK Modus Vivendi | 1 |
| US-UK Modus Vivendi | 1 |
| US–UK Modus Vivendi of 1948 canonical | 1 |
| US–UK nuclear Modus Vivendi | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2702280 — 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: US–UK Modus Vivendi of 1948 Context triple: [Quebec Agreement, supersededBy, US–UK Modus Vivendi of 1948]
-
A.
UKUSA Agreement
The UKUSA Agreement is a post-World War II multilateral intelligence-sharing pact, originally between the US and UK, that underpins the global signals intelligence alliance now known as the Five Eyes.
-
B.
Windsor Agreement
The Windsor Agreement is a post-Brexit deal between the United Kingdom and the European Union that revises the Northern Ireland Protocol to ease trade frictions while preserving an open border on the island of Ireland.
-
C.
London Agreement of 8 August 1945
The London Agreement of 8 August 1945 was an international treaty between the Allied powers that established the legal basis and procedures for prosecuting major Nazi war criminals after World War II.
-
D.
London Memorandum of Understanding (1954)
The London Memorandum of Understanding (1954) was an agreement between Italy, Yugoslavia, the United States, and the United Kingdom that provisionally settled the status and administration of the Free Territory of Trieste and its surrounding border areas after World War II.
-
E.
London Declaration of 1949
The London Declaration of 1949 was a pivotal agreement that reshaped the British Commonwealth into the modern Commonwealth of Nations by allowing republics to remain members while recognizing the British monarch as a symbolic Head of the Commonwealth.
- 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: US–UK Modus Vivendi of 1948 Target entity description: The US–UK Modus Vivendi of 1948 was a postwar agreement that redefined and limited nuclear cooperation between the United States and the United Kingdom, replacing the broader World War II–era arrangements on atomic collaboration.
-
A.
UKUSA Agreement
The UKUSA Agreement is a post-World War II multilateral intelligence-sharing pact, originally between the US and UK, that underpins the global signals intelligence alliance now known as the Five Eyes.
-
B.
Windsor Agreement
The Windsor Agreement is a post-Brexit deal between the United Kingdom and the European Union that revises the Northern Ireland Protocol to ease trade frictions while preserving an open border on the island of Ireland.
-
C.
London Agreement of 8 August 1945
The London Agreement of 8 August 1945 was an international treaty between the Allied powers that established the legal basis and procedures for prosecuting major Nazi war criminals after World War II.
-
D.
London Memorandum of Understanding (1954)
The London Memorandum of Understanding (1954) was an agreement between Italy, Yugoslavia, the United States, and the United Kingdom that provisionally settled the status and administration of the Free Territory of Trieste and its surrounding border areas after World War II.
-
E.
London Declaration of 1949
The London Declaration of 1949 was a pivotal agreement that reshaped the British Commonwealth into the modern Commonwealth of Nations by allowing republics to remain members while recognizing the British monarch as a symbolic Head of the Commonwealth.
- F. None of above. chosen
Statements (38)
| Predicate | Object |
|---|---|
| instanceOf |
bilateral international agreement
ⓘ
nuclear cooperation agreement ⓘ |
| alsoKnownAs |
US–UK Modus Vivendi of 1948
ⓘ
surface form:
1948 US–UK Modus Vivendi
US–UK Modus Vivendi of 1948 ⓘ
surface form:
US-UK Modus Vivendi
US–UK Modus Vivendi of 1948 ⓘ
surface form:
US–UK nuclear Modus Vivendi
|
| appliesTo |
civilian atomic energy cooperation
ⓘ
military uses of atomic energy ⓘ |
| category |
1948 in international relations
ⓘ
Nuclear history of the United Kingdom ⓘ Nuclear history of the United States ⓘ Anglo-American relations ⓘ
surface form:
United Kingdom–United States relations
|
| characteristic | more restrictive than wartime atomic agreements ⓘ |
| countryInvolved |
United Kingdom
ⓘ
United States of America ⓘ
surface form:
United States
|
| dateSigned | 1948 ⓘ |
| geopoliticalImpact | contributed to the partial separation of US and UK nuclear programs ⓘ |
| historicalContext |
early Cold War
ⓘ
postwar reorganization of Allied nuclear collaboration ⓘ |
| language | English ⓘ |
| legalEffect | restricted transfer of nuclear information from the United States to the United Kingdom ⓘ |
| legalNature | executive agreement ⓘ |
| limited | scope of nuclear cooperation between the United States and the United Kingdom ⓘ |
| precedes | later US–UK nuclear agreements ⓘ |
| purpose |
to define conditions for continued but limited nuclear cooperation
ⓘ
to replace broad wartime atomic collaboration with a more restricted framework ⓘ |
| redefined | US–UK nuclear cooperation ⓘ |
| regulates |
sharing of classified nuclear information
ⓘ
technical collaboration on atomic weapons ⓘ |
| relatedTo |
Anglo–American atomic diplomacy
ⓘ
US–UK nuclear relations ⓘ postwar control of atomic energy ⓘ |
| replaced | World War II–era US–UK atomic collaboration arrangements ⓘ |
| signatoryParty |
UK government
ⓘ
surface form:
Government of the United Kingdom
United States government ⓘ
surface form:
Government of the United States
|
| subjectMatter |
atomic energy cooperation
ⓘ
exchange of nuclear information ⓘ nuclear weapons information ⓘ |
| temporalContext | post–World War II period ⓘ |
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: US–UK Modus Vivendi of 1948 Description of subject: The US–UK Modus Vivendi of 1948 was a postwar agreement that redefined and limited nuclear cooperation between the United States and the United Kingdom, replacing the broader World War II–era arrangements on atomic collaboration.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
US-UK Modus Vivendi
this entity surface form:
1948 US–UK Modus Vivendi
this entity surface form:
US–UK nuclear Modus Vivendi