The Battle of Klushino, or the Battle of Kłuszyn, was fought on 4 July 1610, between forces of the Crown of the Kingdom of Poland and the Tsardom of Russia during the Polish–Muscovite War, part of Russia's Time of Troubles. The battle occurred near the village of Klushino near Smolensk. In the battle the outnumbered Polish force secured a decisive victory over Russia, due to the tactical competence of hetman Stanisław Żółkiewski and the military prowess of Polish hussars, the elite of the army of the Crown of the Kingdom of Poland. The battle is remembered as one of the greatest triumphs of the Polish cavalry and an example of excellence and supremacy of the Polish military at the time.