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

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

President-elect Donald Trump said he is nominating Keith Kellogg as the special envoy for Ukraine and Russia, enlisting a ...

Russia opposes simply freezing the conflict in Ukraine because Moscow needs a "solid and long-term peace" that resolves the ...

The Kremlin fired a new intermediate-range ballistic missile at Ukraine on Thursday in response to Kyiv's use this week of ...

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

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

Russian President Vladimir Putin said Thursday Russia hit a Ukrainian aerospace plant with an experimental hypersonic missile ...

Russian President Vladimir Putin said on Thursday that Russia fired a new, non-nuclear intermediate-range ballistic missile ...

The Pentagon confirmed Russia’s missile was a new, experimental type of intermediate-range missile based on its RS-26 ...

Putin warns Russia could use its new missiles against countries allowing Ukraine to fire their missiles at Russia ...

It comes after Russian foreign ministry says a United States anti-missile base in Poland is now ‘a priority target’ ...