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battle, notable, interwar and Second World War

Battle of the Niemen River

Battle of the Niemen River was a battle fought on 25 September 1920 in what is now Belarus. It was part of the Polish–Soviet War, which ran from 1919 to 1921. The recorded result: Polish victory. Recorded strength: about 100,000 against 96,300.

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en:Battle of Niemen
en:Battle of Niemen. The original uploader was Piotrus at English Wikipedia., Public domain, via Wikimedia Commons.
Fought25 September 1920
WhereBelarus53.500N, 24.000E
OutcomePolish victory
BelligerentsRussian SFSRagainstSecond Polish Republic
Casualties and lossesabout 40,000and7,000
Part ofPolish–Soviet War1919 to 1921

Where it sits in the Polish–Soviet War

Battles for Vilnius, 1918Battle of Bereza Kartuska, 1919Battle of Lida, 1919Battle of Warsaw, 1920Kyiv offensive, 1920Battle of Radzymin, 1920Battle of Wołodarka, 1920Battle of Lwów, 1920Battle of Dęblin and Mińsk Mazowiecki, 1920Lipno Operation, 1920Battle of Kock, 1920Battle of Daugavpils, 1920Battle of Letychiv, 1920Battle of Koziatyn, 1920Battle of Czarnobyl, 1920Battle of Berezina, 1920Battle of Głębokie, 1920Battle of Ladami, 1920Battle of Gieranony, 1920First Battle of Grodno, 1920Battle of Czortkowem, 1920Battle of Ostrołęka, 1920Battle of Zarębami Kościelnymi, 1920Battle of Łysowem, 1920Battle of Dorohuskiem, 1920Battle of Kaczkowem, 1920Battle of Mława, 1920Battle of Długosiodłem, 1920Battle of Makowem, 1920Battle of Przewodowem, 1920Battle of Ossów, 1920Battle of the Wkra, 1920Battle of Nasielsk, 1920Battle of Cyców, 1920Battle of Zadwórze, 1920Battle of Wyszków, 1920Battle of Mława (1920), 1920Battle of Białystok, 1920Battle of Komarów, 1920Battle of Sejny, 1920Battle of Dytiatyn, 1920Battle of Prużany, 1920Battle of the Niemen River, 1920Battle of Kojdanowem, 192019181920Battle of the Niemen River, 1920
47 placed engagements of the Polish–Soviet War in time order; taller ticks are more widely documented. Each tick is a link.

Record

Date25 September 1920
PlaceBelarus
53.500N, 24.000E
KindBattle, interwar and Second World War
Strengthabout 100,00096,300
Casualties and lossesabout 40,0007,000
Commanders
Battle of the Niemen RiverBattle of the Niemen RiverFirst Battle of GrodnoBattle of GrodnoBattle of WolkowiskBattle of SkieblewemBattle of KadyszemFirst Battle of GrodnoBattle of GrodnoBattle of WolkowiskBattle of KadyszemVilniusBiałystokEłkBaranavichyChernyakhovsk100 km53.500N, 24.000E
The recorded site, with the nearest other engagements in the atlas. Present-day coastlines, rivers and borders; towns from Natural Earth.

Nearest engagements

In the same war

Elsewhere in 1920

Combat data (CDB90)

Attacker: POL ARMY GROUPDefender: SOV ARMY GROUP
Strength80,000108,500
Casualties20,000 (25.0%)50,000 (46.1%)
Mission accomplishment, 1 to 1084
Outcomeattacker won
Duration2 days
Front width320 km320 km
Attacker advanced120 km

From the US Army Concepts Analysis Agency Database of Battles (CDB90, battle 254), public domain, in the CC0 tidy edition by Jeffrey B. Arnold. Figures are the database's estimates, compiled in 1990 from published histories, and may differ from the Wikipedia infobox above.

Battle of the Niemen River is one of 2,997 engagements of the 20th century in the atlas and one of 103 in present-day Belarus.

Sources

Identity, coordinates, dates and the war from Wikidata Q2599728, released under CC0. Result, belligerents, commanders, strength and casualties from the infobox of the English Wikipedia article Battle of the Niemen River, revision 1370601554, read 2026-11-14, licensed CC BY-SA 4.0; the article's text is not reproduced here. Present-day country and state from Natural Earth. Dates before 1582 follow the Julian calendar as recorded.