The Battle of Avdiivka was a major battle between the Russian and Ukrainian Armed Forces for control of Avdiivka, a city in Donetsk Oblast, during the Russo-Ukrainian war (2022–present). After more than a year and a half of intermittent fighting along the city's outskirts, Russian forces launched an offensive to capture Avdiivka on 10 October 2023, resulting in what was considered one of the bloodiest and fiercest battles of the war.