Ukrainian President Volodymyr Zelenskiy said on Monday that Russia had suffered heavy losses in five months of fighting Ukrainian forces in southern Russia's Kursk region, with nearly 15,000 killed.

Russia said Sunday that Ukraine has launched a new counterattack in the western Kursk region aimed at repelling Russian and North Korean troops trying to retake territory that Kyiv’s forces captured last August. The Russian defense ministry said Kyiv deployed “an assault group consisting of...

Ukrainian forces’ assault was in the Russian region where they made a surprise incursion last summer.

According to Kyiv, Russian and North Korean troops have taken heavy losses in the Kursk region.

Ukraine-controlled Russian territory could be key bargaining chip in any eventual peace talks