SM-3 Block IIA
E458833
The SM-3 Block IIA is an advanced, ship- and land-based ballistic missile defense interceptor co-developed by the United States and Japan, designed to engage medium- and intermediate-range ballistic missiles in space.
All labels observed (4)
| Label | Occurrences |
|---|---|
| SM-3 | 1 |
| SM-3 Block IIA canonical | 1 |
| Standard Missile-3 Block IB | 1 |
| U.S.-Japan SM-3 Cooperative Development Program | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4643273 — 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: SM-3 Block IIA Context triple: [Aegis Ashore (planned, later cancelled), plannedMissileType, SM-3 Block IIA]
-
A.
SS-11 Sego ICBM
The SS-11 Sego was an early Soviet silo-based intercontinental ballistic missile developed during the Cold War to deliver nuclear warheads to long-range strategic targets.
-
B.
SS-13 Savage ICBM
The SS-13 Savage ICBM was an early Soviet solid-fueled intercontinental ballistic missile developed during the Cold War for strategic nuclear deterrence.
-
C.
SS-19 Stiletto ICBM
The SS-19 Stiletto is a Soviet-era, silo-based intercontinental ballistic missile designed to deliver multiple nuclear warheads over long ranges as part of the Cold War strategic arsenal.
-
D.
SS-20 Saber IRBM
The SS-20 Saber was a Soviet intermediate-range ballistic missile deployed during the Cold War, notable for its mobility, multiple nuclear warheads, and central role in triggering the NATO missile deployments and the INF Treaty negotiations.
-
E.
SS-18 Satan ICBM
The SS-18 "Satan" is a Cold War–era Soviet intercontinental ballistic missile known for its extremely large payload capacity and role as a key component of the USSR’s strategic nuclear deterrent.
- 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: SM-3 Block IIA Target entity description: The SM-3 Block IIA is an advanced, ship- and land-based ballistic missile defense interceptor co-developed by the United States and Japan, designed to engage medium- and intermediate-range ballistic missiles in space.
-
A.
SS-11 Sego ICBM
The SS-11 Sego was an early Soviet silo-based intercontinental ballistic missile developed during the Cold War to deliver nuclear warheads to long-range strategic targets.
-
B.
SS-13 Savage ICBM
The SS-13 Savage ICBM was an early Soviet solid-fueled intercontinental ballistic missile developed during the Cold War for strategic nuclear deterrence.
-
C.
SS-19 Stiletto ICBM
The SS-19 Stiletto is a Soviet-era, silo-based intercontinental ballistic missile designed to deliver multiple nuclear warheads over long ranges as part of the Cold War strategic arsenal.
-
D.
SS-20 Saber IRBM
The SS-20 Saber was a Soviet intermediate-range ballistic missile deployed during the Cold War, notable for its mobility, multiple nuclear warheads, and central role in triggering the NATO missile deployments and the INF Treaty negotiations.
-
E.
SS-18 Satan ICBM
The SS-18 "Satan" is a Cold War–era Soviet intercontinental ballistic missile known for its extremely large payload capacity and role as a key component of the USSR’s strategic nuclear deterrent.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
Standard Missile-3 variant
ⓘ
ballistic missile defense interceptor ⓘ |
| alsoKnownAs | RIM-161D ⓘ |
| belongsToFamily |
Standard Missile family
ⓘ
linked to:
SM-2 Standard Missile
|
| category | surface-to-space interceptor ⓘ |
| coDevelopmentAgreement |
U.S.-Japan SM-3 Cooperative Development Program
ⓘ
linked to:
SM-3 Block IIA
|
| countryOfOrigin |
Japan
ⓘ
United States ⓘ
linked to:
United States of America
|
| designedFor |
land-based ballistic missile defense
ⓘ
ship-based ballistic missile defense ⓘ |
| designedToCounter | ballistic missile threats from rogue states ⓘ |
| designedToIntercept |
ballistic missiles in space
ⓘ
intermediate-range ballistic missiles ⓘ medium-range ballistic missiles ⓘ separating warheads of ballistic missiles ⓘ |
| designedToOperateWith |
Aegis Combat System
ⓘ
linked to:
AEGIS combat system
|
| developer |
Mitsubishi Heavy Industries
ⓘ
Raytheon ⓘ
linked to:
Raytheon Company
|
| engagementEnvironment | exo-atmospheric ⓘ |
| enteredService | 2010s ⓘ |
| feature |
improved seeker
ⓘ
increased engagement altitude ⓘ increased engagement range ⓘ larger diameter booster ⓘ larger diameter second stage ⓘ larger kinetic warhead ⓘ |
| guidanceType | hit-to-kill ⓘ |
| improvementOver | SM-3 Block IB ⓘ |
| intendedUse | defense of U.S. and allied territories ⓘ |
| interceptPhase | midcourse ⓘ |
| killVehicleType | kinetic warhead ⓘ |
| launchSystem |
Mk 41 Vertical Launching System
ⓘ
linked to:
Mk 41 VLS
|
| missionProfile | engage targets in space ⓘ |
| partOf |
Aegis Ballistic Missile Defense system
ⓘ
linked to:
Aegis Ballistic Missile Defense
|
| predecessor |
SM-3 Block IA
ⓘ
SM-3 Block IB ⓘ |
| programPartner |
Japan Ministry of Defense
ⓘ
U.S. Missile Defense Agency ⓘ
linked to:
United States Missile Defense Agency
|
| propulsion | three-stage solid-fuel rocket ⓘ |
| role |
homeland defense against certain threats
ⓘ
regional ballistic missile defense ⓘ |
| status | operational ⓘ |
| usedOnPlatform |
Aegis Ashore sites
ⓘ
linked to:
Aegis Ashore (Romania)
Aegis-equipped cruisers ⓘ Aegis-equipped destroyers ⓘ |
| user |
Japan Maritime Self-Defense Force
ⓘ
United States Navy ⓘ |
| warheadType | non-explosive kinetic energy warhead ⓘ |
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: SM-3 Block IIA Description of subject: The SM-3 Block IIA is an advanced, ship- and land-based ballistic missile defense interceptor co-developed by the United States and Japan, designed to engage medium- and intermediate-range ballistic missiles in space.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: SM-3 Block IIA
linked to: SM-3 Block IIA
linked to: SM-3 Block IIA