The epic Battle of Tannenberg began on the Eastern Front.
Up until it, the Imperial Russian Army had been doing well. That was soon to change.
The Russians halted the Austro Hungarian army at Komarów
The French Army of Alsace was recalled and disbanded, ended their successful defense at Mulhouse. The Battle of Lorraine also ended in a French victory, although an extremely costly one.
British and French forces retreated from Le Cateau to Saint Quentin.
The French Second Army prevented the Germans from advancing past Charmes.
The Germans bombed Antwerp by Zeppelin.
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