Flight data showed how American and British reconnaissance aircraft flew from England toward Russia on Monday.

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

Russia does not care about Trump's ultimatum of sanctions unless Moscow agrees to a peace deal in Ukraine, a senior security official said.

The Kremlin said on Tuesday that U.S. President Donald Trump's recent statements, including a threat of sanctions on buyers of Russian exports, are serious and require analysis.

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.

He's killing too many people," Trump said. "So we're sending some defensive weapons to Ukraine."Start the day smarter. Get all the news you need in your inbox each morning. Trump did not approve the weapons pause,

Latest news and live updates as Trump announces the U.S. will send Patriot missiles to Ukraine and meets with NATO's secretary general.

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