Moscow has increasingly hit critical substations linked to nuclear power plants in an effort to disconnect them. At the same ...

Officials recently cited by the New York Times floated moving nuclear weapons into Ukraine as insurance against repeat ...

President Vladimir Putin said on Thursday that Russia would use all weapons at its disposal against Ukraine if Kyiv were to ...

Discussion in the West about arming Ukraine with nuclear weapons is "absolutely irresponsible", Kremlin spokesman Dmitry ...

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

Putin's goals in Ukraine remain the same: weakening Ukraine's ties to NATO, hindering Ukrainian nationalism and territorial ...

Putin ‘open to nuclear tests’ as Zelensky discusses ending ‘hot phase of war’ - Senior Russian official says Kremlin is ...

A senior Russian diplomat has suggested that Moscow is open to conducting nuclear missile tests for the first time since 1990 ...

Moscow’s use of an intermediate-range ballistic missile sends its own powerful signal about Putin’s determination to prevail ...

Putin lowered the bar for a nuclear attack after the US lifted a ban on Ukraine using long-range missiles. Ukraine carried ...

Russia’s decision to fire a ballistic missile at Ukraine on Nov. 21 may be considered a “mock nuclear strike,” expert Robert ...

Ukrainian President Volodymyr Zelensky says he wants to work “directly” with US President-elect Donald Trump and is open to ...