Ukraine Claims Major Gains in Operation Vivaldi as HIMARS and ATACMS Target Russian Logistics

Ukraine’s 3rd Army Corps reports that its forces reclaimed 277 square kilometers and liberated 16 settlements during Operation Vivaldi north of Lyman. The reported gains are attributed to a combination of ground assaults, drone reconnaissance and strikes against Russian supply networks. The territorial claims and extent of Russian withdrawals require independent confirmation.

The supplied account also describes Ukrainian HIMARS and ATACMS attacks against Russian air-defense systems and ammunition depots. One reported engagement allegedly involved an S-400 system firing six interceptors without stopping an incoming ATACMS missile, although this account has not been independently verified.

The broader campaign focuses on disrupting the supplies needed to sustain Russian frontline positions. Strikes against ammunition stockpiles, fuel transport and railway infrastructure can force Russian units to move supplies over longer distances and rely on smaller, more vulnerable deliveries.

Ukrainian drones reportedly monitor roads and target freight trains, fuel trucks and motorcycle-based supply movements. Prisoner accounts cited in the report describe shortages of food, water and ammunition, conditions that can weaken defensive positions and complicate counterattacks.

The central issue is how effectively Russia can maintain its forces when supply routes face persistent pressure. If the reported strikes and territorial gains are confirmed, they could represent a significant local setback for Russian operations. However, the longer-term impact will depend on Russia’s ability to restore logistics, replace equipment and reinforce its positions.