https://www.live-feeds.com/feed/operation-vivaldi-s-fourth-season-ukraine-retakes-another-101-square-kilometers-on-lyman-front-biletskyi-saysContinuously updated, source-cited coverage. https://www.live-feeds.com/feed/operation-vivaldi-s-fourth-season-ukraine-retakes-another-101-square-kilometers-on-lyman-front-biletskyi-sayshttps://www.live-feeds.com/feed/operation-vivaldi-s-fourth-season-ukraine-retakes-another-101-square-kilometers-on-lyman-front-biletskyi-says#u130452Sun, 18 Oct 2026 04:00:51 +0000Ukrainian forces retook 101 square kilometers and three villages in northern Donetsk Oblast during the fourth phase of Operation Vivaldi. The Third Army Corps reports the liberation of Zelena Dolyna, Lypove, and Kolodiazi in the Lyman sector. Ukrainian officials state Russian forces suffered approximately 3,000 casualties during this stage of the counteroffensive. The operation aims to block Russian attempts to outflank Ukrainian fortress cities in the Donbas region.Why it mattersOperation Vivaldi is a multi-phase Ukrainian counteroffensive in the Donetsk region. The current phase emphasizes t