Okinawa Reversion Agreement

E1013298

Japan–United States treaty bilateral treaty international agreement

The Okinawa Reversion Agreement was a 1971 treaty between the United States and Japan that returned administrative control of Okinawa to Japan, formally ending decades of post–World War II U.S. military governance there.

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All labels observed (3)

Label	Occurrences
Okinawa Reversion Agreement canonical	3
Agreement Between Japan and the United States of America Concerning the Ryukyu Islands and the Daito Islands	1
Agreement between Japan and the United States of America concerning the Ryukyu Islands and the Daito Islands	1

How this entity was disambiguated

This entity first appeared as the object of triple T12994132 — 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: Okinawa Reversion Agreement
Context triple: [American occupation of Okinawa, endCause, Okinawa Reversion Agreement]

A. Treaty of San Francisco
The Treaty of San Francisco was the 1951 peace treaty between Japan and most Allied nations that officially ended World War II hostilities with Japan and restored its sovereignty.
B. U.S.–Japan Status of Forces Agreement
The U.S.–Japan Status of Forces Agreement is a bilateral pact that defines the legal status, rights, and obligations of U.S. military personnel stationed in Japan.
C. Japan–Soviet Joint Declaration of 1956
The Japan–Soviet Joint Declaration of 1956 is a post–World War II bilateral agreement that restored diplomatic relations between Japan and the Soviet Union and laid groundwork for resolving their territorial and peace treaty issues.
D. United Nations Trusteeship Agreement for the Former Japanese Mandated Islands
The United Nations Trusteeship Agreement for the Former Japanese Mandated Islands was the international legal instrument that established and governed the post–World War II UN trusteeship system over Japan’s former Pacific island territories, primarily administered by the United States.
E. Japan–Korea Annexation Treaty
The Japan–Korea Annexation Treaty was the 1910 agreement through which the Japanese Empire formally annexed Korea, initiating a period of colonial rule under a Japanese governor-general.
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: Okinawa Reversion Agreement
Target entity description: The Okinawa Reversion Agreement was a 1971 treaty between the United States and Japan that returned administrative control of Okinawa to Japan, formally ending decades of post–World War II U.S. military governance there.

A. Treaty of San Francisco
The Treaty of San Francisco was the 1951 peace treaty between Japan and most Allied nations that officially ended World War II hostilities with Japan and restored its sovereignty.
B. U.S.–Japan Status of Forces Agreement
The U.S.–Japan Status of Forces Agreement is a bilateral pact that defines the legal status, rights, and obligations of U.S. military personnel stationed in Japan.
C. Japan–Soviet Joint Declaration of 1956
The Japan–Soviet Joint Declaration of 1956 is a post–World War II bilateral agreement that restored diplomatic relations between Japan and the Soviet Union and laid groundwork for resolving their territorial and peace treaty issues.
D. United Nations Trusteeship Agreement for the Former Japanese Mandated Islands
The United Nations Trusteeship Agreement for the Former Japanese Mandated Islands was the international legal instrument that established and governed the post–World War II UN trusteeship system over Japan’s former Pacific island territories, primarily administered by the United States.
E. Japan–Korea Annexation Treaty
The Japan–Korea Annexation Treaty was the 1910 agreement through which the Japanese Empire formally annexed Korea, initiating a period of colonial rule under a Japanese governor-general.
F. None of above. chosen

Statements (46)

Predicate	Object
instanceOf	Japan–United States treaty ⓘ bilateral treaty ⓘ international agreement ⓘ
alsoKnownAs	Agreement between Japan and the United States of America concerning the Ryukyu Islands and the Daito Islands ⓘ linked to: Okinawa Reversion Agreement
appliesToTerritory	Daito Islands ⓘ linked to: Daitō Islands Okinawa Prefecture ⓘ Ryukyu Islands ⓘ
cameIntoEffectOn	same day as reversion of Okinawa to Japanese administration ⓘ
category	1971 in international relations ⓘ Japan–United States relations ⓘ Treaties of Japan ⓘ Treaties of the United States ⓘ
context	postwar settlement of territories formerly under U.S. occupation ⓘ
countrySignatory	Japan ⓘ United States ⓘ linked to: United States of America
dateSigned	1971-06-17 ⓘ
diplomaticProcess	bilateral negotiations between Japan and the United States in the late 1960s and early 1970s ⓘ
endedAdministrationBy	United States Civil Administration of the Ryukyu Islands ⓘ
enteredIntoForce	1972-05-15 ⓘ
follows	post–World War II U.S. military occupation of Okinawa ⓘ
governingLawAfter	Japanese domestic law applied to Okinawa ⓘ
historicalPeriod	Cold War ⓘ
impact	formal end of U.S. military government in Okinawa ⓘ integration of Okinawa into Japan’s legal and administrative system ⓘ
implementedOn	1972-05-15 ⓘ
language	English ⓘ Japanese ⓘ
legalEffect	superseded U.S. Civil Administration authority in the Ryukyu Islands ⓘ
legalStatusAfter	Okinawa became part of Japan’s home territory ⓘ
maintained	U.S. military presence in Okinawa under new legal framework ⓘ
negotiatedBetween	Japanese Ministry of Foreign Affairs and U.S. Department of State ⓘ linked to: Ministry of Foreign Affairs of Japan
placeSigned	Washington, D.C. ⓘ
policyContext	U.S. policy of reversion of occupied territories to allied governments ⓘ
providedFor	continuation of U.S. military bases in Okinawa under the U.S.–Japan Security Treaty ⓘ return of administrative rights over Okinawa to Japan ⓘ
relatedTo	San Francisco Peace Treaty ⓘ linked to: Treaty of San Francisco Treaty of Mutual Cooperation and Security between the United States and Japan ⓘ
restoredSovereigntyTo	Japan ⓘ
resultedIn	Okinawa Prefecture’s full return to Japanese administration ⓘ
securityArrangements	U.S. forces in Okinawa governed by the U.S.–Japan Status of Forces Agreement (SOFA) ⓘ
signedBy	Government of Japan ⓘ Government of the United States ⓘ linked to: United States government
subject	end of U.S. civil administration in Okinawa ⓘ reversion of Okinawa to Japan ⓘ
typeOfChange	transfer of administrative control ⓘ
year	1971 ⓘ

How these facts were elicited

Referenced by (5)

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

American occupation of Okinawa → endCause → Okinawa Reversion Agreement ⓘ

American occupation of Okinawa → significantEvent → Okinawa Reversion Agreement ⓘ

United States Civil Administration of the Ryukyu Islands → significantEvent → Okinawa Reversion Agreement ⓘ

Okinawa Reversion Agreement → alsoKnownAs → Agreement between Japan and the United States of America concerning the Ryukyu Islands and the Daito Islands ⓘ

linked to: Okinawa Reversion Agreement

Reversion of Okinawa to Japan → subjectOf → Agreement Between Japan and the United States of America Concerning the Ryukyu Islands and the Daito Islands ⓘ