The Battle of Khotyn or Battle of Chocim or Hotin War was a combined siege and series of battles which took place from 2 September to 9 October 1621 between a Polish-Lithuanian army with Cossack allies, commanded by the Grand Hetman of Lithuania Jan Karol Chodkiewicz, and an invading Ottoman Imperial army, led by Sultan Osman II, which was stopped until the first autumn snows. Wikipedia