Underwater Demolition Team insignia

E536830

U.S. Navy insignia military badge

The Underwater Demolition Team insignia was the distinctive qualification badge worn by U.S. Navy frogmen of the World War II–era Underwater Demolition Teams, the elite predecessors of today’s Navy SEALs.

Try in SPARQL Jump to: Surface forms Disambiguation Statements Elicitation Referenced by

All labels observed (3)

Label	Occurrences
Naval Special Warfare insignia	1
Underwater Demolition Team insignia canonical	1
Underwater Demolition Team member	1

How this entity was disambiguated

This entity first appeared as the object of triple T5596571 — 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: Underwater Demolition Team insignia
Context triple: [SEAL Trident, precededBy, Underwater Demolition Team insignia]

A. Marine Special Operator Insignia
The Marine Special Operator Insignia is a distinctive breast badge worn by qualified U.S. Marine Corps special operations personnel, symbolizing their status and training within Marine Forces Special Operations Command (MARSOC).
B. Fleet Marine Force combat insignia
The Fleet Marine Force combat insignia is a distinguishing device worn on certain U.S. military medals and ribbons to denote participation in ground combat operations as part of a Fleet Marine Force unit.
C. Marine Corps emblem
The Marine Corps emblem is the iconic insignia of the United States Marine Corps, featuring an eagle, globe, and anchor that symbolize the service’s commitment to country, global reach, and naval heritage.
D. United States Coast Guard emblem
The United States Coast Guard emblem is the official insignia featuring a life ring, crossed anchors, and the service’s name and founding date, symbolizing its maritime security, search and rescue, and law enforcement missions.
E. Coast Guard Cross
The Coast Guard Cross is a high-level U.S. military decoration awarded to members of the Coast Guard for extraordinary heroism not involving actual conflict with an enemy.
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: Underwater Demolition Team insignia
Target entity description: The Underwater Demolition Team insignia was the distinctive qualification badge worn by U.S. Navy frogmen of the World War II–era Underwater Demolition Teams, the elite predecessors of today’s Navy SEALs.

A. Marine Special Operator Insignia
The Marine Special Operator Insignia is a distinctive breast badge worn by qualified U.S. Marine Corps special operations personnel, symbolizing their status and training within Marine Forces Special Operations Command (MARSOC).
B. Fleet Marine Force combat insignia
The Fleet Marine Force combat insignia is a distinguishing device worn on certain U.S. military medals and ribbons to denote participation in ground combat operations as part of a Fleet Marine Force unit.
C. Marine Corps emblem
The Marine Corps emblem is the iconic insignia of the United States Marine Corps, featuring an eagle, globe, and anchor that symbolize the service’s commitment to country, global reach, and naval heritage.
D. United States Coast Guard emblem
The United States Coast Guard emblem is the official insignia featuring a life ring, crossed anchors, and the service’s name and founding date, symbolizing its maritime security, search and rescue, and law enforcement missions.
E. Coast Guard Cross
The Coast Guard Cross is a high-level U.S. military decoration awarded to members of the Coast Guard for extraordinary heroism not involving actual conflict with an enemy.
F. None of above. chosen

Statements (31)

Predicate	Object
instanceOf	U.S. Navy insignia ⓘ military badge ⓘ
associatedConflict	European Theater of World War II ⓘ linked to: European theatre of World War II Pacific Theater of World War II ⓘ linked to: Pacific War
associatedWith	Naval Special Warfare community ⓘ linked to: Naval Special Warfare Command
associatedWithOperationType	amphibious warfare ⓘ beach reconnaissance ⓘ obstacle clearance ⓘ
country	United States ⓘ linked to: United States of America
eliteUnitPredecessorOf	United States Navy SEALs ⓘ linked to: Navy SEALs
era	World War II era ⓘ linked to: World War II
heritageOf	modern Navy SEAL insignia ⓘ
historicalSignificance	predecessor badge to modern Naval Special Warfare insignia ⓘ
militaryBranch	United States Navy ⓘ
predecessorOf	SEAL Trident ⓘ
qualificationFor	Underwater Demolition Team member ⓘ linked to: Underwater Demolition Team insignia
relatedTo	Underwater Demolition Team ⓘ United States Navy SEALs ⓘ linked to: Navy SEALs
represents	membership in World War II Underwater Demolition Teams ⓘ
serviceBranchRole	special operations forces ⓘ
symbolizes	amphibious reconnaissance capability ⓘ combat swimmer capability ⓘ qualification in underwater demolition operations ⓘ
usedBy	U.S. Navy frogmen ⓘ linked to: Frogmen Underwater Demolition Teams ⓘ linked to: Navy SEALs United States Navy ⓘ
usedDuring	World War II ⓘ
wearerRole	combat swimmer ⓘ frogman ⓘ
wearerStatus	qualified UDT operator ⓘ
wornOn	U.S. Navy uniform ⓘ

How these facts were elicited

Referenced by (3)

Full triples — surface form annotated when it differs from this entity's canonical label.

SEAL Trident → precededBy → Underwater Demolition Team insignia ⓘ

Marine Special Operator Insignia → relatedTo → Naval Special Warfare insignia ⓘ

linked to: Underwater Demolition Team insignia

Underwater Demolition Team insignia → qualificationFor → Underwater Demolition Team member ⓘ