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 ...

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

Senior Russian security official Dmitry Medvedev said on Tuesday that if the West supplied nuclear weapons to Ukraine then ...

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

The war between Russia and Ukraine is intensifying with new attacks and new concerns over the weapons being used by both ...

In an exclusive interview with Sky News, Volodymyr Zelenskyy says a ceasefire deal could be struck if Ukrainian territory he ...

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

Russian President Vladimir Putin has threatened to strike Ukraine again with a new nuclear-capable ballistic missile ...

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

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