Île Longue naval base

E911321

military installation naval base nuclear submarine base

Île Longue naval base is France’s primary nuclear submarine facility, hosting and supporting the country’s seaborne nuclear deterrent force.

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All labels observed (3)

Label	Occurrences
Île Longue submarine base	4
Île Longue naval base canonical	2
Île Longue nuclear submarine base	1

How this entity was disambiguated

This entity first appeared as the object of triple T11217845 — 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: Île Longue naval base
Context triple: [Force océanique stratégique, garrison, Île Longue naval base]

A. Naval Station Argentia
Naval Station Argentia was a major United States Navy base in Newfoundland, Canada, that served as a key Atlantic anti-submarine warfare and communications hub during World War II and the Cold War.
B. CFB Valcartier
CFB Valcartier is a major Canadian Army base in Quebec that serves as a key training and operational hub for mechanized and other land forces.
C. Ostend Naval Base
Ostend Naval Base is a key Belgian naval installation on the North Sea coast, serving as an operational hub for the country’s maritime defense and support activities.
D. Lora Naval Base
Lora Naval Base is a major Croatian naval installation located in Split, serving as a key operational and logistical hub for the Croatian Navy.
E. La Pointe-de-l’Île
La Pointe-de-l’Île is a federal electoral district located in the eastern part of Montreal, Quebec, represented in the House of Commons of Canada.
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: Île Longue naval base
Target entity description: Île Longue naval base is France’s primary nuclear submarine facility, hosting and supporting the country’s seaborne nuclear deterrent force.

A. Naval Station Argentia
Naval Station Argentia was a major United States Navy base in Newfoundland, Canada, that served as a key Atlantic anti-submarine warfare and communications hub during World War II and the Cold War.
B. CFB Valcartier
CFB Valcartier is a major Canadian Army base in Quebec that serves as a key training and operational hub for mechanized and other land forces.
C. Ostend Naval Base
Ostend Naval Base is a key Belgian naval installation on the North Sea coast, serving as an operational hub for the country’s maritime defense and support activities.
D. Lora Naval Base
Lora Naval Base is a major Croatian naval installation located in Split, serving as a key operational and logistical hub for the Croatian Navy.
E. La Pointe-de-l’Île
La Pointe-de-l’Île is a federal electoral district located in the eastern part of Montreal, Quebec, represented in the House of Commons of Canada.
F. None of above. chosen

Statements (47)

Predicate	Object
instanceOf	military installation ⓘ naval base ⓘ nuclear submarine base ⓘ
access	restricted to authorized military personnel ⓘ
associatedWith	French nuclear doctrine ⓘ linked to: French nuclear force submarine-launched ballistic missiles (SLBMs) ⓘ
branch	Marine nationale ⓘ linked to: Marine Nationale
builtFor	deployment of Redoutable-class SSBNs ⓘ
constructionStart	1960s ⓘ
controlledBy	French Ministry of Armed Forces ⓘ linked to: Ministry of the Armed Forces of France
country	France ⓘ
garrison	Force océanique stratégique personnel ⓘ
hasFacility	command and control center ⓘ dry docks ⓘ logistics and supply facilities ⓘ maintenance workshops ⓘ missile storage bunkers ⓘ security perimeter and checkpoints ⓘ submarine pens ⓘ warhead storage bunkers ⓘ
homeportOf	French SSBN fleet ⓘ Le Terrible ⓘ Le Triomphant ⓘ linked to: Le Triomphant (S616) Le Téméraire ⓘ Le Vigilant ⓘ Triomphant-class ballistic missile submarines ⓘ
locatedIn	Brittany ⓘ Finistère department ⓘ linked to: Department of Finistère northwestern France ⓘ linked to: Western France roadstead of Brest ⓘ Île Longue ⓘ
near	Brest, France ⓘ linked to: Brest
nuclearWeaponsRelated	yes ⓘ
operator	French Navy ⓘ
partOf	Force océanique stratégique ⓘ French strategic nuclear forces ⓘ linked to: French nuclear force
primaryRole	hosting France’s nuclear ballistic missile submarine fleet ⓘ
securityLevel	highly restricted area ⓘ
status	active ⓘ
strategicImportance	central element of French nuclear deterrence ⓘ ensures continuous at-sea deterrent patrols ⓘ
usedFor	crew training and support ⓘ deployment of France’s seaborne nuclear deterrent ⓘ maintenance of nuclear submarines ⓘ storage of nuclear warheads ⓘ storage of submarine-launched ballistic missiles ⓘ support of ballistic missile submarines ⓘ

How these facts were elicited