The Battle of Chasiv Yar is a military engagement in the Russo-Ukrainian war between the Russian Armed Forces and the Armed Forces of Ukraine for control of the city of Chasiv Yar and surrounding villages. The battle began on 4 April 2024 with the first direct assault on the city by Russian forces, and has thus far seen the capture of the district east of a canal passing through the city, the crossing of the canal, and the claimed capture of the city as of early August 2025. As of December 2025, the Institute for the Study of War reported continued fighting in the city