Yes. On September 15, 2026, Brigadier-General Andrii Biletskyi, commander of Ukraine’s Third Army Corps, said his forces had started an offensive in the north of Donetsk region under the name Operation Vivaldi, near the Sloviansk–Kramatorsk “fortress belt.”
Biletskyi said the corps had cleared about 75 square kilometres (29 square miles) of Russian infiltration groups and recaptured a further 10 sq km, including full control of the village of Serednie. Reuters reported that it could not independently verify the territorial claims.
Source: Reuters — Ukraine launches offensive push in north of Donetsk region