Soviet–Japanese Neutrality Pact
E44870
The Soviet–Japanese Neutrality Pact was a 1941 non-aggression treaty between the Soviet Union and Japan that temporarily ensured peace between the two powers during World War II until it was renounced by the USSR in 1945.
All labels observed (4)
| Label | Occurrences |
|---|---|
| Soviet–Japanese Neutrality Pact canonical | 8 |
| Soviet–Japanese Neutrality Pact of 1941 | 4 |
| Soviet–Japanese Neutrality Treaty | 1 |
| Soviet–Japanese Non-Aggression Pact | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T349384 — 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: Soviet–Japanese Neutrality Pact Context triple: [Soviet–Japanese War (1945), precededBy, Soviet–Japanese Neutrality Pact]
-
A.
Molotov–Ribbentrop Pact
The Molotov–Ribbentrop Pact was a 1939 non-aggression treaty between Nazi Germany and the Soviet Union that secretly divided Eastern Europe into spheres of influence, paving the way for the outbreak of World War II.
-
B.
Moscow Peace Treaty
The Moscow Peace Treaty was the 1940 agreement that ended the Winter War between Finland and the Soviet Union, forcing Finland to cede significant territories to the USSR.
-
C.
German–Polish Non-Aggression Pact
The German–Polish Non-Aggression Pact was a 1934 treaty between Nazi Germany and Poland intended to guarantee mutual non-aggression, which was effectively nullified when Germany invaded Poland in 1939.
-
D.
Anti-Comintern Pact
The Anti-Comintern Pact was a 1936 anti-communist alliance initially between Nazi Germany and Imperial Japan that became a key diplomatic foundation for the Axis powers before and during World War II.
-
E.
Treaty of Brest-Litovsk
The Treaty of Brest-Litovsk was a 1918 peace agreement in which Bolshevik Russia exited World War I by ceding vast territories to the Central Powers, profoundly reshaping Eastern Europe and influencing the course of the Russian Civil War.
- 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: Soviet–Japanese Neutrality Pact Target entity description: The Soviet–Japanese Neutrality Pact was a 1941 non-aggression treaty between the Soviet Union and Japan that temporarily ensured peace between the two powers during World War II until it was renounced by the USSR in 1945.
-
A.
Molotov–Ribbentrop Pact
The Molotov–Ribbentrop Pact was a 1939 non-aggression treaty between Nazi Germany and the Soviet Union that secretly divided Eastern Europe into spheres of influence, paving the way for the outbreak of World War II.
-
B.
Moscow Peace Treaty
The Moscow Peace Treaty was the 1940 agreement that ended the Winter War between Finland and the Soviet Union, forcing Finland to cede significant territories to the USSR.
-
C.
German–Polish Non-Aggression Pact
The German–Polish Non-Aggression Pact was a 1934 treaty between Nazi Germany and Poland intended to guarantee mutual non-aggression, which was effectively nullified when Germany invaded Poland in 1939.
-
D.
Anti-Comintern Pact
The Anti-Comintern Pact was a 1936 anti-communist alliance initially between Nazi Germany and Imperial Japan that became a key diplomatic foundation for the Axis powers before and during World War II.
-
E.
Treaty of Brest-Litovsk
The Treaty of Brest-Litovsk was a 1918 peace agreement in which Bolshevik Russia exited World War I by ceding vast territories to the Central Powers, profoundly reshaping Eastern Europe and influencing the course of the Russian Civil War.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
World War II–era treaty
ⓘ
bilateral treaty ⓘ international treaty ⓘ non-aggression pact ⓘ |
| allowedPolicy |
enabled Japan to focus on its war in China and the Pacific
ⓘ
enabled the Soviet Union to concentrate on its war with Nazi Germany ⓘ |
| alsoKnownAs |
Soviet–Japanese Neutrality Pact
ⓘ
surface form:
Soviet–Japanese Neutrality Treaty
Soviet–Japanese Neutrality Pact ⓘ
surface form:
Soviet–Japanese Non-Aggression Pact
|
| articleContent |
each party pledged to maintain peaceful and friendly relations
ⓘ
each party pledged to remain neutral if the other was attacked by a third power ⓘ each party pledged to respect the territorial integrity and inviolability of the other ⓘ |
| conflictContext |
Soviet–Japanese border conflicts
ⓘ
World War II ⓘ |
| countrySignatory |
Japan
ⓘ
Soviet Union ⓘ |
| dateDenounced | 1945-04-05 ⓘ |
| dateSigned | 1941-04-13 ⓘ |
| denouncedBy | Soviet Union ⓘ |
| effectiveEnd | 1946-04-25 ⓘ |
| enteredIntoForce | 1941-07-25 ⓘ |
| historicalSignificance |
helped shape strategic decisions of both Axis and Allied powers in Asia
ⓘ
reduced likelihood of a northern front war for Japan during its expansion in Southeast Asia ⓘ reduced likelihood of a two-front war for the Soviet Union during the German invasion ⓘ |
| language |
Japanese
ⓘ
Russian ⓘ |
| legalNature | binding international agreement under international law ⓘ |
| locationSigned | Moscow ⓘ |
| precededBy |
Soviet–Japanese border conflicts
ⓘ
surface form:
Soviet–Japanese border conflicts of the late 1930s
|
| purpose |
to ensure neutrality between the Soviet Union and Japan
ⓘ
to prevent armed conflict between the Soviet Union and Japan ⓘ |
| relatedEvent |
Battle of Khalkhin Gol
ⓘ
Soviet declaration of war on Japan in August 1945 ⓘ |
| renewalClause | automatic renewal for another 5 years unless denounced one year before expiry ⓘ |
| renunciationContext | denounced by the Soviet Union shortly before its entry into the war against Japan ⓘ |
| resultedIn |
mutual neutrality between the Soviet Union and Japan until 1945
ⓘ
temporary stabilization of Soviet–Japanese relations ⓘ |
| signatory |
Japan
ⓘ
surface form:
Empire of Japan
Soviet Union ⓘ
surface form:
Union of Soviet Socialist Republics
|
| signedByPerson |
Vyacheslav Molotov
ⓘ
Yosuke Matsuoka ⓘ |
| signedForCountry |
Vyacheslav Molotov signed for the Soviet Union
ⓘ
Yosuke Matsuoka signed for Japan ⓘ |
| statusDuringWWII | remained formally in force until 1946 despite 1945 denunciation ⓘ |
| subjectOf |
historical research on Soviet–Japanese relations
ⓘ
studies of World War II diplomacy ⓘ |
| termLength | 5 years ⓘ |
| yearSigned | 1941 ⓘ |
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: Soviet–Japanese Neutrality Pact Description of subject: The Soviet–Japanese Neutrality Pact was a 1941 non-aggression treaty between the Soviet Union and Japan that temporarily ensured peace between the two powers during World War II until it was renounced by the USSR in 1945.
Referenced by (14)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Soviet–Japanese Neutrality Pact of 1941
this entity surface form:
Soviet–Japanese Neutrality Pact of 1941
this entity surface form:
Soviet–Japanese Neutrality Treaty
this entity surface form:
Soviet–Japanese Non-Aggression Pact
this entity surface form:
Soviet–Japanese Neutrality Pact of 1941
this entity surface form:
Soviet–Japanese Neutrality Pact of 1941