Japan Ministry of Defense

E38709

Japanese government agency defense ministry government ministry

The Japan Ministry of Defense is the Japanese government agency responsible for national defense policy, oversight of the Self-Defense Forces, and coordination of military affairs, particularly in the context of Japan’s security partnership with the United States.

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All labels observed (14)

Label	Occurrences
Ministry of Defense of Japan	53
Japan Ministry of Defense canonical	32
Ministry of Defense (Japan)	17
防衛省	7
Japan Defense Agency	6
Japanese Ministry of Defense	3
Japan Ministry of Defense Ichigaya base	1
Japan Ministry of Defense headquarters	1
Japan Ministry of Defense headquarters complex	1
Japanese Defense Agency	1
Japanese defense authorities	1
Japanese defense establishment	1
Ministry of Defense headquarters (Japan)	1
防衛装備庁	1

How this entity was disambiguated

This entity first appeared as the object of triple T293390 — 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: Japan Ministry of Defense
Context triple: [United States–Japan security alliance, keyPartnerInstitution, Japan Ministry of Defense]

A. Japan Self-Defense Forces
The Japan Self-Defense Forces are Japan’s post–World War II military organization, maintained strictly for defensive purposes under the country’s pacifist constitution.
B. Japan Maritime Self-Defense Force
The Japan Maritime Self-Defense Force is Japan’s post–World War II naval branch responsible for maritime defense, security, and disaster relief operations under the country’s pacifist constitution.
C. Japan Air Self-Defense Force
The Japan Air Self-Defense Force is the aviation branch of Japan’s Self-Defense Forces, responsible for the country’s air defense and airspace security.
D. Navy Ministry of Japan
The Navy Ministry of Japan was the pre-World War II government department responsible for administering and overseeing the Imperial Japanese Navy.
E. Government of Japan
The Government of Japan is the central governing authority of Japan, responsible for national administration, legislation, and policy-making under a constitutional monarchy.
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: Japan Ministry of Defense
Target entity description: The Japan Ministry of Defense is the Japanese government agency responsible for national defense policy, oversight of the Self-Defense Forces, and coordination of military affairs, particularly in the context of Japan’s security partnership with the United States.

A. Japan Self-Defense Forces
The Japan Self-Defense Forces are Japan’s post–World War II military organization, maintained strictly for defensive purposes under the country’s pacifist constitution.
B. Japan Maritime Self-Defense Force
The Japan Maritime Self-Defense Force is Japan’s post–World War II naval branch responsible for maritime defense, security, and disaster relief operations under the country’s pacifist constitution.
C. Japan Air Self-Defense Force
The Japan Air Self-Defense Force is the aviation branch of Japan’s Self-Defense Forces, responsible for the country’s air defense and airspace security.
D. Navy Ministry of Japan
The Navy Ministry of Japan was the pre-World War II government department responsible for administering and overseeing the Imperial Japanese Navy.
E. Government of Japan
The Government of Japan is the central governing authority of Japan, responsible for national administration, legislation, and policy-making under a constitutional monarchy.
F. None of above. chosen

Statements (48)

Predicate	Object
instanceOf	Japanese government agency ⓘ defense ministry ⓘ government ministry ⓘ
budgetFunction	defense budget planning ⓘ defense procurement ⓘ
collaboratesWith	Japan Ministry of Foreign Affairs ⓘ linked to: Ministry of Foreign Affairs of Japan United States Indo-Pacific Command ⓘ
coordinates	Japan–U.S. defense technology cooperation ⓘ Japan–U.S. joint military exercises ⓘ
coordinatesWith	United States Department of Defense ⓘ linked to: Department of Defense
country	Japan ⓘ
dateFormed	2007 ⓘ
ensures	civilian control of the military in Japan ⓘ
headedBy	Minister of Defense ⓘ
headquartersLocation	Ichigaya district, Tokyo ⓘ Shinjuku, Tokyo ⓘ linked to: Shinjuku, Tokyo, Japan
jurisdiction	Government of Japan ⓘ
languageOfName	Japanese ⓘ
legalBasis	Ministry of Defense Establishment Law ⓘ
maintains	defense white papers ⓘ
memberOf	Cabinet of Japan ⓘ
ministerialPost	Minister of Defense of Japan ⓘ
nativeName	防衛省 ⓘ linked to: Japan Ministry of Defense
oversees	Acquisition, Technology and Logistics Agency ⓘ Japan Air Self-Defense Force ⓘ Japan Ground Self-Defense Force ⓘ Japan Maritime Self-Defense Force ⓘ Joint Staff Office ⓘ linked to: Joint Staff National Defense Academy of Japan ⓘ National Institute for Defense Studies ⓘ
parentAgency	Cabinet of Japan ⓘ
playsRoleIn	Japan–United States security alliance ⓘ linked to: United States–Japan security alliance
policyArea	defense policy ⓘ military strategy ⓘ national security ⓘ
precededBy	Japan Defense Agency ⓘ linked to: Japan Ministry of Defense
publishes	annual defense white paper ⓘ
reportsTo	Prime Minister of Japan ⓘ
responsibleFor	Medium Term Defense Program ⓘ National Defense Program Guidelines ⓘ defense planning guidelines ⓘ military affairs of Japan ⓘ national defense policy of Japan ⓘ oversight of the Japan Self-Defense Forces ⓘ
shortName	MOD ⓘ
subjectTo	Article 9 of the Constitution of Japan ⓘ
typeOfOrganization	civilian-controlled defense organization ⓘ
upgradedFrom	Japan Defense Agency ⓘ linked to: Japan Ministry of Defense

How these facts were elicited