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

Ukraine has lost over 40 per cent of the territory captured in Russia’s Kursk region as Russian forced mount waves of counter assaults.

Ukrainian forces hit a radar station of an S-400 anti-aircraft missile system in Russia's Kursk Oblast on the night of 23-24 November. Source: Ukraine's General Staff Details: The General Staff reported that Ukrainian troops had struck the positions of an anti-aircraft missile division from the 1490th Guards Anti-Aircraft Missile Regiment of the 6th Army of the Russian Federation in Kursk Oblast.

Ukrainian forces executed a nighttime operation targeting the Russian 1490th Anti-Aircraft Missile Brigade's radar station in the Kursk region.

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

The move marks the latest reversal from the White House on what weapons it’s sending and how freely Ukraine can use them.