✦ History

Part of World War I

Battle of Gumbinnen

August 20, 1914 · Battle of Gumbinnen

Result Russian victory

Rennenkampf's Russian First Army threw back the German Eighth Army's attack in East Prussia.

On the map Contemporaries

Allies

Central Powers

Other

Russian Empire
German Empire
Paul von Rennenkampf military commander
Maximilian von Prittwitz military commander August von Mackensen military commander

Strength and losses

Strength
63,800
Casualties
18,839
Strength
74,400
Casualties
14,607

Units

1st Army (Russian Empire)
8th Army (German Empire) I Reserve Corps (German Empire) XVII Corps (German Empire) XX Corps (German Empire) 1st Cavalry Division (German Empire) 2nd Division (German Empire) 35th Division (German Empire) 36th Division (German Empire)
I Corps (German Empire) 1st Division (German Empire)

Also involved 1