The Battle of Jastków was a World War I battle that took place July 31–August 3, 1915, near the village of Jastków, then part of the Russian Empire.

It was a major clash between the Russian Army and the Austro-Hungarian Polish Legions (primarily the 1st Brigade, Polish Legions).

The battle ended with the Austro-Hungarian and Polish victory, as the Russian forces retreated.

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