Kyiv launched a surprise incursion into Kursk in early August, and Russia has struggled to peel back Ukraine's most significant advance into Russian territory since the start of full-scale war in February 2022, and the first ground attacks by another ...

Ukraine has lost over 40% of the territory in Russia's Kursk region that it seized in a surprise incursion in August as Russian forces have mounted waves of counter-assaults, a senior Ukrainian military source said.