The Battle of Chudnov (Chudniv, Cudnów) took place from 14 October to 2 November 1660, between the forces of the Polish-Lithuanian Commonwealth, allied with the Crimean Tatars, and the Tsardom of Russia, allied with the Cossaks. It ended with a decisive Polish victory, and the truce of Chudnov (Polish: Cudnów). The entire Russian army, including its commander, was taken into jasyr slavery by the Tatars.