Ukraine’s president claimed that his troops were ‘actively destroying Russian military potential’ in the Kursk region of Russia

"During the Kursk operation, the enemy has already lost 38,000 of their soldiers in this direction alone, with nearly 15,000 of these losses being irreversible," Zelenskiy said in his nightly video address.

It comes as Ukraine's president says only the US can provide security guarantees leading to an end to the war.

Kyiv troops attacked in at least three areas within the Kursk region, some using armoured vehicles, according to the Institute for the Study of War

As Ukrainian forces mount a new offensive in Russia’s Kursk region, U.S. Secretary of State Antony Blinken on Monday said that success in this region would improve Kyiv’s bargaining position in any future ceasefire negotiations.

Ukrainian armed forces on Sunday night began a surprise offensive in Russia’s Kursk region. This was in an apparent attempt to regain the initiative on the battlefield before Donald Trump’s imminent return to the White House,