Battle of Gumbinnen | |||||||
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Part of Russian invasion of East Prussia during Eastern front | |||||||
Eastern Front, 17–23 August 1914. | |||||||
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Belligerents | |||||||
German Empire | Russian Empire | ||||||
Commanders and leaders | |||||||
Maximilian von Prittwitz August von Mackensen | Paul von Rennenkampf | ||||||
Units involved | |||||||
8th Army | 1st Army | ||||||
Strength | |||||||
74,400 men 224 machine guns and 408 guns[1] |
63,800 total 252 machine guns and 408 guns[2] | ||||||
Casualties and losses | |||||||
10,000[3] to 14,607[4] | 6,200[3] to 18,839 |
The Battle of Gumbinnen, initiated by forces of the German Empire on 20 August 1914, was a German offensive on the Eastern Front during the First World War. Because of the hastiness of the German attack, the Russian Army emerged victorious.