The Battle of Kircaali or Battle of Kardzhali was part of the First Balkan War between the armies of Bulgaria and the Ottoman Empire. It took place on 21 October 1912, when the Bulgarian defeated the Ottoman Kırcaali Detachment of Yaver Pasha and permanently joined Kardzhali and the Eastern Rhodopes to Bulgaria. The anniversary of that event is celebrated annually on 21 October as a holiday of the city.