Ukrainian forces claim to have stopped Russia's advance into the northern Sumy region, stabilizing the front line near the border. Ukraine's top military commander said on Thursday that this success has prevented Russia from redeploying 50,000 troops, including elite units, to other areas. Russian officials have not commented on the claim. Fighting continues along the 1,000-kilometer front line, with Ukraine relying on drones to counter Russia's slow but costly advances. In Donetsk, Russia claims to have captured two villages as part of its offensive. Both sides are also launching long-range drone strikes, causing injuries and damage across multiple regions.

Ukrainian forces have withdrawn from some parts of the country's northeast and were battling Russian troops in other areas. Meanwhile, President Volodymyr Zelenskyy postponed all his upcoming foreign trips, underscoring the seriousness of the threat his soldiers are facing. Against that grim backdrop, U.S. Secretary of State Antony Blinken sought to reassure the ally of continuing American support. He announced a $2 billion arms deal Wednesday. Most of the money comes from a package approved last month. The top diplomat is in Ukraine as Russian troops press a new offensive in northeastern Ukraine's Kharkiv region.