Volodymyr Zelenskyy has appointed two of Ukraine’s most prominent commanders to oversee and strengthen defences of the “fortress belt” of industrialised cities in the Donetsk region. Visiting the frontline, Zelenskyy said Third Army Corps leader Andrii Biletskyi and Denys Prokopenko, commander of the First Corps ⁠Azov, would head new groupings. Both units are known for embracing Nato-style doctrine and new technology.

Russian forces are putting pressure on the cities of Kostiantynivka, Kramatorsk and Sloviansk – all critical strongholds for Ukraine. According to open-source mapping group Deep State, Moscow’s ‌troops have been infiltrating deeper into Kostiantynivka, with the Ukrainians weeding them out from houses, basements and ruins. Russia was also stepping up its air and artillery ​attacks on Kramatorsk and Sloviansk to prepare for a targeted offensive on those cities, Deep State said.

Ukrainian military analyst Mykola Bielieskov told Reuters the appointments were “the right move” in giving Ukraine’s new commander in chief, Mykhailo Drapatyi, greater scope for strategic planning. His predecessor, the “Soviet-era” general Oleksandr Syrskyi, was criticised for micromanagement. Ukrainian drone forces commander Robert Brovdi, a leader of Kyiv’s mid and long-range strike campaigns, praised the appointments as an important step towards “network-centric warfare … This is exactly what ‘Smart War’ is,” he posted.