"His use of the phrase ‘nuclear tests’ suggests actual nuclear detonations, whereas the call for tests ‘on an equal basis’ to Russia and China would be tests of nuclear weapons delivery systems. This is a major difference, and clarification by the administration is urgently needed," she said.

Russia has deployed around 170,000 troops in Ukraine’s eastern Donetsk region where they are trying to capture the stronghold of Pokrovsk in a major push for a battlefield victory, Ukrainian President...

Since the summer, Ukraine’s long-range drone campaign has ramped up dramatically, pounding energy infrastructure across Russia and stretching Moscow’s air defenses thin.

At a secret location in rural Ukraine, columns of attack drones are assembled at night and in near silence to strike deep inside Russia.

Ukraine has handed over a captured Russian soldier accused of torture and illegal detention to Lithuania for trial, in what Kyiv said was the first case of its kind involving the justice system of a ...

Ukrainian forces destroyed one of Russia’s advanced new hypersonic missiles by striking it on the ground at a military base in Russia, top Kyiv officials claimed Friday.

Russian air defences downed 98 Ukrainian drones overnight over Russian regions, the country's defence ministry said on Saturday.

President Volodymyr Zelensky said on Tuesday that about 200 Russian troops had infiltrated Pokrovsk.