The Battle of Zorndorf was a battle fought on August 25, 1758 during the Seven Years' War. The site of the battle was the Prussian village Zorndorf (now Sarbinowo, Poland).In August 1758, 43,000 Russian troops under William Fermor advanced within 100 km from Berlin and were poised to join the Austrians under Field Marshal Daun. King Frederick II of Prussia understood that the meeting of his enemies would spell the fall of Berlin and, deciding to forestall their plans, moved into the Russian rear. Fermor, who was then besieging Küstrin, learned about his manouevre from a Cossack sortie. He lifted the siege and occupied an advantageous position at Zorndorf, 10 km southeast of Küstrin.
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