Russian forces have made only marginal net territorial gains across Ukraine in 2026 amid high casualties and Ukrainian counteroffensives, including Operation Vivaldi, which disrupted efforts to encircle the Donbas Fortress Belt cities of Sloviansk, Kramatorsk, Druzhkivka, and Kostyantynivka. Russian advances have slowed to fractions of a square kilometer per day in priority sectors, with repeated missed deadlines for full Donetsk Oblast control. Localized ceasefires, such as the extended one in occupied Oleshky, and reported trilateral talks scheduled around November 2026 introduce additional uncertainty. These battlefield trends and diplomatic signals shape trader assessments of Russian prospects for entering additional cities by the end of 2027, alongside variables like Western weapons deliveries and Ukrainian defensive adaptations.