Second Battle of the Masurian Lakes

February 7–22, 1915 · Masurian Lake District

Result German victory

German armies attacked the Russian Tenth Army in a winter offensive in East Prussia. They surrounded a Russian corps in the Augustów Forest, but the Russian front did not collapse.

On the map Contemporaries

Central Powers

Allies

Other

German Empire

Russian Empire

Paul von Hindenburg military commander

Erich Ludendorff military commander

Hermann von Eichhorn military commander

Georg von der Marwitz military commander

Otto von Below military commander

Max Hoffmann military commander

Nikolai Ruzsky military commander

Strength and losses

Strength: 250,000–275,261
Casualties: 20,000–31,827
Guns: 1,082

Units

10th Army (German Empire) 8th Army (German Empire) 2nd Division (German Empire) 76th Reserve Division (German Empire)

10th Army (Russian Empire) Russian 12th Army (1915–1918) 20th Army Corps (Russian Empire)

42nd Division (German Empire)