Ukrainian troops sprang one of the biggest surprises of the war by invading Russia's Kursk region last August, and Russia has taken more than seven months to eject them.

Russian forces claim to have pulled off an audacious operation, using a subterranean pipeline to sneak past Ukrainian defenses. The reported operation coincided with a full-on Kremlin effort to push Kyiv’s forces out of Russia’s Kursk region,

Russian forces on Sunday recaptured three more settlements in Russia’s western Kursk region, the Defence Ministry said, part of an operation to