I, Daniel Richard Martindale, voluntarily and consciously, accepting the citizenship of the Russian Federation, swear to observe the constitution,” he said in Russian.

President Trump has effectively handed Vladimir Putin an extraordinary green light: 50 days to finish off his brutal summer offensive in Ukraine before facing any consequences.

A retired Army officer who worked as a civilian Air Force employee has pleaded guilty to conspiring to share classified information about Russia's war with Ukraine.

U.S. President Donald Trump's Ukraine envoy Keith Kellogg began talks in Kyiv on Monday on security and sanctions against Russia. That's a day after the U.S. president said he would send Patriot air defence missiles to Ukraine.

Donald Trump’s remarks on Ukraine on Monday were far from the biggest announcement the US president could have made.

During his campaign, Trump said bringing a quick end to the war was a top priority and that helping Ukraine was a waste of US taxpayer money.

Seoul said North Korea has likely supplied 12 million shells to Russia. Moscow, meanwhile, said Kim has pledged at least 6,000 more troops as workers.

Kyiv says two people accused of working for Russia and shooting dead a Ukrainian intelligence officer were killed.