Trump, Russia and Ukraine
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Direct conflict between Russia and NATO was once unthinkable, but preparations and defense spending have been stepped up in nervous Baltic states.
Ukrainian President Volodymyr Zelenskyy visited to ask President Trump for more military aid as the war with Russia persists.
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.
A court in southern Russia has convicted 15 captured Ukrainian soldiers on terrorism charges. Kyiv has denounced their trial as a sham and a violation of international law.
On Oct. 18, 1867, the United States completed its purchase of Alaska for $7.2 million, taking possession of the territory from Russia.
Britain targeted Russia's two largest oil companies, Lukoil and Rosneft, and 51 shadow fleet tankers on Wednesday in what it described as a new bid to tighten energy sanctions and choke off Kremlin revenues.
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.
A reporter asked President Trump about a proposal for a tunnel between Russia and Alaska, during a meeting with Ukraine President Zelensky at the White House on Friday. Trump said the idea was interesting and joked that Zelensky wouldn't like it.