"Russian forces have likely begun their anticipated Spring-Summer 2026 offensive against the Ukrainian Fortress Belt, Ukraine’s main defensive line in Donetsk Oblast. Russian forces have begun intensified ground operations in the Lyman direction to advance on Slovyansk, the northern tip of the Fortress Belt, from the northeast, likely to set conditions for an additional push on Slovyansk from the east and southeast at a later date."
https://understandingwar.org/research/r ... h-21-2026/


