Ukraine's 'Vivaldi' operation in Donbass strains Russian front lines

Ukrainian forces have reportedly achieved more than halting the Russian advance in the Donbass, with the 'Vivaldi' operation creating precarious conditions for Russian troops on multiple front sections. The report suggests autumn will bring further challenges for Russia, though specific tactical details remain unconfirmed. This signals a potential shift in battlefield momentum, which could affect Western support and market sentiment.