South Sakhalin Offensive Operation

E50055

World War II military campaign military offensive

The South Sakhalin Offensive Operation was a 1945 Soviet military campaign against Japan aimed at seizing the southern part of Sakhalin Island during the final stages of World War II.

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All labels observed (5)

Label	Occurrences
Soviet invasion of South Sakhalin	2
Khingan–Mukden offensive operation	1
Sakhalin Offensive	1
South Sakhalin Offensive Operation canonical	1
South Sakhalin Operation	1

How this entity was disambiguated

This entity first appeared as the object of triple T349382 — 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: South Sakhalin Offensive Operation
Context triple: [Soviet–Japanese War (1945), hasPart, South Sakhalin Offensive Operation]

A. Manchurian Strategic Offensive Operation
The Manchurian Strategic Offensive Operation was the massive August 1945 Soviet invasion of Japanese-occupied Manchuria that decisively contributed to Japan’s surrender at the end of World War II.
B. Soviet–Japanese War (1945)
The Soviet–Japanese War of 1945 was the brief but decisive final campaign of World War II in Asia, in which the Soviet Union invaded Japanese-held Manchuria and other territories, hastening Japan’s surrender.
C. Operation Ichi-Go
Operation Ichi-Go was a major 1944 Japanese military offensive in China during World War II aimed at securing railways, destroying U.S. air bases, and linking Japanese-held territories.
D. North Caucasus offensive operations
North Caucasus offensive operations were a series of Red Army attacks aimed at driving German forces out of the North Caucasus region during the latter stages of the Eastern Front campaign in World War II.
E. East Pomeranian Offensive
The East Pomeranian Offensive was a major 1945 Soviet military campaign that cleared German forces from Pomerania, securing the Red Army’s northern flank in preparation for the final assault on Berlin.
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: South Sakhalin Offensive Operation
Target entity description: The South Sakhalin Offensive Operation was a 1945 Soviet military campaign against Japan aimed at seizing the southern part of Sakhalin Island during the final stages of World War II.

A. Manchurian Strategic Offensive Operation
The Manchurian Strategic Offensive Operation was the massive August 1945 Soviet invasion of Japanese-occupied Manchuria that decisively contributed to Japan’s surrender at the end of World War II.
B. Soviet–Japanese War (1945)
The Soviet–Japanese War of 1945 was the brief but decisive final campaign of World War II in Asia, in which the Soviet Union invaded Japanese-held Manchuria and other territories, hastening Japan’s surrender.
C. Operation Ichi-Go
Operation Ichi-Go was a major 1944 Japanese military offensive in China during World War II aimed at securing railways, destroying U.S. air bases, and linking Japanese-held territories.
D. North Caucasus offensive operations
North Caucasus offensive operations were a series of Red Army attacks aimed at driving German forces out of the North Caucasus region during the latter stages of the Eastern Front campaign in World War II.
E. East Pomeranian Offensive
The East Pomeranian Offensive was a major 1945 Soviet military campaign that cleared German forces from Pomerania, securing the Red Army’s northern flank in preparation for the final assault on Berlin.
F. None of above. chosen

Statements (45)

Predicate	Object
instanceOf	World War II military campaign ⓘ military offensive ⓘ
alsoKnownAs	Sakhalin Offensive ⓘ linked to: South Sakhalin Offensive Operation South Sakhalin Operation ⓘ linked to: South Sakhalin Offensive Operation
belligerent	Empire of Japan ⓘ linked to: Japan Soviet Union ⓘ
cause	Soviet declaration of war on Japan on 1945-08-08 ⓘ
combatant	Japanese 5th Area Army ⓘ Soviet 2nd Far Eastern Front ⓘ linked to: 2nd Far Eastern Front
commander	Dmitry Krylov ⓘ Ivan Maslennikov ⓘ Maxim Purkayev ⓘ
conflict	Soviet–Japanese War ⓘ linked to: Soviet–Japanese War (1945)
conflictType	land and amphibious operation ⓘ
countryInvolved	Japan ⓘ Soviet Union ⓘ
date	August 1945 ⓘ
endDate	1945-08-25 ⓘ
followedBy	Invasion of the Kuril Islands ⓘ linked to: Soviet occupation of Kuril Islands
historicalPeriod	final stages of World War II ⓘ
location	Karafuto Prefecture ⓘ Sakhalin Island ⓘ South Sakhalin ⓘ linked to: Sakhalin Island
objective	occupation of Karafuto Prefecture ⓘ seizure of southern Sakhalin Island ⓘ
opponent	Imperial Japanese Army ⓘ Imperial Japanese Navy ⓘ
opposedBy	Japanese Karafuto garrison ⓘ
outcome	annexation of South Sakhalin by the Soviet Union ⓘ
partOf	Pacific War ⓘ Soviet Far East campaigns of 1945 ⓘ linked to: Soviet–Japanese War (1945) Soviet invasion of Manchuria ⓘ linked to: Manchurian Strategic Offensive Operation Soviet–Japanese War ⓘ linked to: Soviet–Japanese War (1945) World War II ⓘ
precededBy	Soviet invasion of Manchuria ⓘ linked to: Manchurian Strategic Offensive Operation
region	Northeast Asia ⓘ linked to: East Asia Russian Far East ⓘ linked to: Russia Far East
relatedAgreement	Yalta Conference decisions on the Far East ⓘ
result	Soviet victory ⓘ
startDate	1945-08-11 ⓘ
strategicSignificance	facilitated subsequent Soviet invasion of the Kuril Islands ⓘ secured Soviet control over approaches to the Sea of Okhotsk ⓘ
theatre	Far East theatre of World War II ⓘ linked to: Pacific War Pacific theatre of World War II ⓘ linked to: Pacific War
timePeriod	20th century ⓘ

How these facts were elicited