Three experts spoke to Newsweek about the possibility of Moscow firing nuclear weapons into Ukraine as tensions escalate.

Trump's pick for special envoy for Ukraine and Russia, has pushed a proposal to end the war between the two countries through ...

Donald Trump nominated retired General Keith Kellogg as his special envoy for Ukraine and Russia, choosing a longtime adviser ...

Europe is no longer in a "pre-war situation" with Russia but "an actual war", the former head of MI6 has told Sky News.

President-elect Donald Trump will nominate Gen. Keith Kellogg to serve as assistant to the president and special envoy for ...

In an April policy paper obtained by NBC News, Kellogg wrote in favor of "a formal U.S. policy to seek a cease-fire and ...

President-elect Trump on Wednesday announced his appointment of Keith Kellogg, a retired lieutenant general who served as ...

Russia launched a new non-nuclear ballistic missile with medium range on Ukraine’s Dnipro region on Thursday, Russia’s ...

Russian President Vladimir Putin says Moscow has tested a new intermediate-range missile in a strike on Ukraine and that it ...

U.S. officials told NBC News that the weapon fired by Moscow at the eastern Ukrainian city of Dnipro was an experimental ...

Russia on Thursday launched an intercontinental ballistic missile toward Ukraine, officials in Kyiv said, but a Western ...

Western officials have challenged the Ukrainian air force's assertions, saying it was not an ICBM.