Soviet occupation of Eastern Poland

E17490

historical event military occupation

The Soviet occupation of Eastern Poland was the 1939–1941 annexation and control of Poland’s eastern territories by the USSR following the Molotov–Ribbentrop Pact and the joint German-Soviet invasion of Poland.

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All labels observed (28)

Label	Occurrences
Soviet invasion of Poland	32
Soviet invasion of Poland (1939)	10
Soviet occupation of Poland	5
Soviet occupation of Eastern Poland canonical	4
Soviet annexation of Eastern Poland (1939)	2
Soviet invasion of eastern Poland	2
Soviet occupation of Eastern Poland in 1939	2
Soviet administration in Belarus	1
Soviet and German occupation of Poland	1
Soviet annexation of Eastern Poland	1
Soviet annexation of Eastern Poland in 1939	1
Soviet annexation of Western Ukraine	1
Soviet annexation of eastern Poland	1
Soviet annexation of eastern Poland in 1939	1
Soviet authorities in occupied Poland	1
Soviet invasion of Eastern Poland	1
Soviet invasion of Poland in 1939	1
Soviet military occupation of Poland	1
Soviet occupation authorities in eastern Poland	1
Soviet occupation forces in Poland	1
Soviet occupation of 1939–1941	1
Soviet occupation of Eastern Galicia 1939–1941	1
Soviet occupation of Eastern Poland (1939–1941)	1
Soviet occupation of Lwów	1
Soviet occupation of Poland (1939–1941)	1
Soviet occupation of Western Ukraine	1
Soviet-occupied Poland	1
Soviet–Polish borderlands	1

How this entity was disambiguated

This entity first appeared as the object of triple T75211 — 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: Soviet occupation of Eastern Poland
Context triple: [Second Polish Republic, followedBy, Soviet occupation of Eastern Poland]

A. German occupation of Poland
The German occupation of Poland was the period during World War II when Nazi Germany controlled Polish territory, marked by extreme repression, mass murder, and the systematic persecution and extermination of Jews and other targeted groups.
B. Invasion of Poland
The Invasion of Poland was the 1939 German and Soviet military campaign that triggered the start of World War II in Europe.
C. Polish–Soviet War
The Polish–Soviet War (1919–1921) was a major post–World War I conflict between the newly re-established Poland and Soviet Russia that helped determine the borders of Eastern Europe and the fate of the region’s independence movements.
D. Warsaw Uprising
The Warsaw Uprising was a major 1944 armed insurrection by the Polish resistance against Nazi German occupation, aiming to liberate Warsaw before the Soviet advance.
E. Second Polish Republic
The Second Polish Republic was the independent Polish state that existed between World War I and World War II, ultimately destroyed by the joint German and Soviet invasion in 1939.
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: Soviet occupation of Eastern Poland
Target entity description: The Soviet occupation of Eastern Poland was the 1939–1941 annexation and control of Poland’s eastern territories by the USSR following the Molotov–Ribbentrop Pact and the joint German-Soviet invasion of Poland.

A. German occupation of Poland
The German occupation of Poland was the period during World War II when Nazi Germany controlled Polish territory, marked by extreme repression, mass murder, and the systematic persecution and extermination of Jews and other targeted groups.
B. Invasion of Poland
The Invasion of Poland was the 1939 German and Soviet military campaign that triggered the start of World War II in Europe.
C. Polish–Soviet War
The Polish–Soviet War (1919–1921) was a major post–World War I conflict between the newly re-established Poland and Soviet Russia that helped determine the borders of Eastern Europe and the fate of the region’s independence movements.
D. Warsaw Uprising
The Warsaw Uprising was a major 1944 armed insurrection by the Polish resistance against Nazi German occupation, aiming to liberate Warsaw before the Soviet advance.
E. Second Polish Republic
The Second Polish Republic was the independent Polish state that existed between World War I and World War II, ultimately destroyed by the joint German and Soviet invasion in 1939.
F. None of above. chosen

Statements (56)

Predicate	Object
instanceOf	historical event ⓘ military occupation ⓘ
appliesToJurisdiction	Byelorussian Soviet Socialist Republic ⓘ Lithuanian Soviet Socialist Republic ⓘ linked to: Lithuanian–Belorussian Soviet Socialist Republic Ukrainian Soviet Socialist Republic ⓘ linked to: Soviet Ukraine
appliesToTerritorialEntity	Eastern Poland ⓘ
country	Soviet Union ⓘ
endTime	1941-06-22 ⓘ
followedBy	German invasion of the Soviet Union ⓘ linked to: Operation Barbarossa German occupation of Eastern Poland ⓘ linked to: German occupation of Poland Operation Barbarossa ⓘ
follows	German–Soviet invasion of Poland ⓘ linked to: Invasion of Poland Molotov–Ribbentrop Pact ⓘ
hasCause	German–Soviet invasion of Poland ⓘ linked to: Invasion of Poland Molotov–Ribbentrop Pact ⓘ
hasEffect	border changes in Central and Eastern Europe ⓘ disruption of Polish state structures ⓘ ethnic tensions in annexed territories ⓘ population displacement ⓘ weakening of the Polish state ⓘ
implementedBy	NKVD ⓘ Red Army ⓘ
location	Belarus ⓘ Kresy ⓘ Lithuania ⓘ Ukraine ⓘ Vilnius Region ⓘ Western Belarus ⓘ Western Ukraine ⓘ
participant	Second Polish Republic ⓘ Soviet Union ⓘ
partOf	Soviet occupation of Poland (1939–1941) ⓘ linked to: Soviet occupation of Eastern Poland World War II ⓘ
result	annexation of Eastern Poland by the Soviet Union ⓘ incorporation of territories into the Byelorussian SSR ⓘ incorporation of territories into the Lithuanian SSR ⓘ incorporation of territories into the Ukrainian SSR ⓘ
significantEvent	Katyn massacre ⓘ Soviet deportations from Eastern Poland ⓘ linked to: Polish deportees in the USSR Sovietization of annexed territories ⓘ censorship ⓘ closure of Polish schools ⓘ collectivization of agriculture ⓘ confiscation of private property ⓘ deportations to the Soviet interior ⓘ forced Soviet citizenship ⓘ liquidation of Polish institutions ⓘ mass arrests ⓘ nationalization of industry ⓘ persecution of Polish intelligentsia ⓘ political repression ⓘ religious persecution ⓘ resistance by Polish underground ⓘ rigged elections to the People’s Assemblies ⓘ suppression of Polish political parties ⓘ
startTime	1939-09-17 ⓘ

How these facts were elicited