Under Secretary of Defense

E1043736

United States federal government position civilian office senior leadership position in the U.S. Department of Defense

The Under Secretary of Defense is a senior civilian official in the U.S. Department of Defense responsible for overseeing major defense policies, programs, or support functions under the Secretary of Defense.

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

All labels observed (2)

Label	Occurrences
Under Secretaries of Defense	4
Under Secretary of Defense canonical	3

How this entity was disambiguated

This entity first appeared as the object of triple T13491515 — 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: Under Secretary of Defense
Context triple: [Stephen T. Early, positionHeld, Under Secretary of Defense]

A. Assistant Secretary of Defense
The Assistant Secretary of Defense is a senior civilian official in the U.S. Department of Defense responsible for overseeing specific policy, operational, or support areas and advising top defense leadership.
B. Under Secretary of Defense for Policy
The Under Secretary of Defense for Policy is a senior civilian official in the U.S. Department of Defense responsible for developing and overseeing national defense policy and strategic guidance.
C. Under Secretary of the Air Force
The Under Secretary of the Air Force is the second-highest-ranking civilian official in the U.S. Department of the Air Force, responsible for assisting in the oversight and management of its policies, resources, and operations.
D. Under Secretary of Defense for Acquisition and Sustainment
The Under Secretary of Defense for Acquisition and Sustainment is a senior U.S. Department of Defense official responsible for overseeing military procurement, technology acquisition, logistics, and lifecycle sustainment of defense systems.
E. Under Secretary of Defense for Personnel and Readiness
The Under Secretary of Defense for Personnel and Readiness is the senior civilian official in the U.S. Department of Defense responsible for overseeing military and civilian personnel policy, readiness, health affairs, and quality-of-life programs.
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: Under Secretary of Defense
Target entity description: The Under Secretary of Defense is a senior civilian official in the U.S. Department of Defense responsible for overseeing major defense policies, programs, or support functions under the Secretary of Defense.

A. Assistant Secretary of Defense
The Assistant Secretary of Defense is a senior civilian official in the U.S. Department of Defense responsible for overseeing specific policy, operational, or support areas and advising top defense leadership.
B. Under Secretary of Defense for Policy
The Under Secretary of Defense for Policy is a senior civilian official in the U.S. Department of Defense responsible for developing and overseeing national defense policy and strategic guidance.
C. Under Secretary of the Air Force
The Under Secretary of the Air Force is the second-highest-ranking civilian official in the U.S. Department of the Air Force, responsible for assisting in the oversight and management of its policies, resources, and operations.
D. Under Secretary of Defense for Acquisition and Sustainment
The Under Secretary of Defense for Acquisition and Sustainment is a senior U.S. Department of Defense official responsible for overseeing military procurement, technology acquisition, logistics, and lifecycle sustainment of defense systems.
E. Under Secretary of Defense for Personnel and Readiness
The Under Secretary of Defense for Personnel and Readiness is the senior civilian official in the U.S. Department of Defense responsible for overseeing military and civilian personnel policy, readiness, health affairs, and quality-of-life programs.
F. None of above. chosen

Statements (49)

Predicate	Object
instanceOf	United States federal government position ⓘ civilian office ⓘ senior leadership position in the U.S. Department of Defense ⓘ
appointedBy	President of the United States ⓘ
appointedTerm	serves at the pleasure of the President ⓘ
belongsTo	United States executive branch ⓘ linked to: executive branch of the United States
canBeHeldBy	one person per specific portfolio at a time ⓘ
category	United States Department of Defense officials ⓘ linked to: United States Department of Defense positions United States government titles ⓘ
country	United States of America ⓘ
establishedBy	United States Congress ⓘ
hasAbbreviation	USD ⓘ linked to: USD(P) USD(A&S) ⓘ USD(C) ⓘ USD(P&R) ⓘ USD(Policy) ⓘ linked to: USD(P) USD(R&E) ⓘ
hasStyle	The Honorable ⓘ
hasSubPosition	Under Secretary of Defense (Comptroller) ⓘ linked to: Comptroller of the Department of Defense Under Secretary of Defense for Acquisition and Sustainment ⓘ Under Secretary of Defense for Personnel and Readiness ⓘ Under Secretary of Defense for Policy ⓘ Under Secretary of Defense for Research and Engineering ⓘ
includedIn	United States defense leadership ⓘ
influences	U.S. military planning and resourcing ⓘ U.S. national security policy ⓘ
isCivilian	true ⓘ
jurisdiction	federal government of the United States ⓘ linked to: United States government
languageOfOffice	English ⓘ
legalBasis	Title 10 of the United States Code ⓘ
locatedIn	Arlington, Virginia ⓘ The Pentagon ⓘ linked to: Pentagon
mayDelegateTo	Assistant Secretaries of Defense ⓘ
memberOf	Office of the Secretary of Defense ⓘ
oversees	defense policy development ⓘ implementation of defense programs ⓘ support activities for U.S. armed forces ⓘ
partOf	United States Department of Defense ⓘ linked to: Department of Defense
rankInDepartment	senior civilian official ⓘ
reportsTo	Secretary of Defense ⓘ linked to: United States Secretary of Defense
requires	advice and consent of the United States Senate ⓘ extensive experience in defense, security, or public administration ⓘ
responsibleFor	major defense policies ⓘ major defense programs ⓘ major defense support functions ⓘ
responsibleTo	United States Congress for oversight and reporting ⓘ
sector	defense ⓘ
worksWith	Chairman of the Joint Chiefs of Staff ⓘ Deputy Secretary of Defense ⓘ linked to: United States Deputy Secretary of Defense

How these facts were elicited

Referenced by (7)

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

Stephen T. Early → positionHeld → Under Secretary of Defense ⓘ

subject linked to: Early

Under Secretary of Defense for Personnel and Readiness → rank → Under Secretary of Defense ⓘ

Assistant Secretaries of Defense → reportsTo → Under Secretaries of Defense ⓘ

linked to: Under Secretary of Defense

United States Armed Forces leadership → includesCivilianLeader → Under Secretaries of Defense ⓘ

linked to: Under Secretary of Defense

Assistant Secretary of Defense → reportsTo → Under Secretary of Defense ⓘ

Assistant Secretary of Defense → advises → Under Secretaries of Defense ⓘ

linked to: Under Secretary of Defense

Title IX – Department of Defense Organization and Management → authorityOf → Under Secretaries of Defense ⓘ

linked to: Under Secretary of Defense

All labels observed (2)

How this entity was disambiguated Show

Statements (49)

How these facts were elicited Show

Referenced by (7)

How this entity was disambiguated

How these facts were elicited