Direct conflict between Russia and NATO was once unthinkable, but preparations and defense spending have been stepped up in nervous Baltic states.

Russia, China, Iran and North Korea are using artificial intelligence to improve their cyberattacks on U.S. companies, governments and individuals, according to new research from Microsoft.

Trump" rail tunnel under the Bering Strait to link their countries, unlock joint exploration of natural resources and "symbolise unity", a Kremlin envoy has suggested.

A court in southern Russia convicted 15 captured Ukrainian soldiers on terrorism charges Friday after a trial that Kyiv denounced as a sham and a violation of international law. The military court in Rostov-on-Don sentenced 15 men from the Aidar battalion, which Russia has designated a terrorist group, to prison terms ranging from 15 to 21 years.

President Donald Trump was noncommittal when asked about the idea by a reporter during a lunch Friday at the White House with Ukrainian President Volodymyr Zelensky.

Austria said on Saturday that it would agree to the European Union's latest sanctions package against Russia, in an about-face of its earlier stance and removing a key hurdle ahead of a vote early next week.

The director of Russia's domestic FSB intelligence service has accused the U.K., a member of NATO, of direct involvement in attacks on Russia.

On Oct. 18, 1867, the United States completed its purchase of Alaska for $7.2 million, taking possession of the territory from Russia.