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BATTLE // January 31, 1915

Battle of Bolimów

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Overview

The Battle of Humin-Bolimów was an inconclusive battle of World War I fought between January 14 and February 28, 1915 between the Imperial German Army and Russia. The battle is considered a preliminary to the Second Battle of the Masurian Lakes.

Overview adapted from Wikipedia, licensed under CC BY-SA 4.0.

Significance

The Battle of Bolimów, fought between January 14 and February 28, 1915 on the Eastern Front, was an engagement between Imperial German and Russian forces that ended inconclusively. Despite the disparity in force size — Germany fielding roughly 362,000 troops against a Russian force of over 527,000 — German casualties were considerably lower, with Russian losses approaching four times those of the German side. The battle's principal strategic function was as a preliminary operation to the Second Battle of the Masurian Lakes, suggesting it served at least in part to fix or attrite Russian forces in advance of that larger offensive. Commanders of note on the German side included Hindenburg, Ludendorff, and Mackensen, reflecting the operational weight placed on this sector of the front.

Forces & casualties

Troop strength

  • German Empire362,446
    medium
  • Russian Empire527,000
    medium

Russian Empire fielded a 1.5 : 1 numerical advantage

Casualties

  • German Empire4,631
    medium1% loss rate
  • Russian Empire17,385
    medium3% loss rate

Commanders (6)

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Related

6 sibling battles · 4 factions

Last verified June 2026
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