The Latest Breaking News from Nuclear Weapons

Australia and New Zealand condemned Russian President Vladimir Putin's escalation of the war in Ukraine, saying his threats to use nuclear weapons to defend Russia were "unthinkable" and exposed his justification for the war as untrue.

Thursday: Joe Biden and allied leaders have reacted angrily to Vladimir Putin’s threats to use nuclear weapons. Plus: Brad Pitt’s side career as a sculptor

Ukraine asks world leaders to say ‘very firmly’ that nuclear strike would have catastrophic consequences for Russia

President Volodymyr Zelensky insisted the Russian tyrant didn't care if he was killing his own people in addition to Ukrainians as Russian forces lose ground and are forced to give in to Ukraine

Russian President Vladimir Putin insisted he was not bluffing as he appeared to threaten the use of nuclear weapons if his country was threatened.

President Vladimir Putin declared a “partial mobilization,” calling up 300,000 reservists, in a major escalation of his flagging invasion of Ukraine, which he portrayed as a fight to the death with the U.S. and its allies.

President Vladimir Putin's thinly veiled threat to use nuclear weapons after Russian setbacks in Ukraine was "dangerous and reckless rhetoric," NATO's secretary general said on Wednesday, adding that the only way to end the war was to prove Moscow will not win on the battlefield.

Ukrainian President Volodymyr Zelenskiy said on Wednesday he did not believe the world would allow Vladimir Putin to use nuclear weapons and vowed to press on with liberating Ukrainian territory captured by Russian forces.

There’s been a worrying escalation in the Russia - Ukraine war after Vladimir Putin made yet another nuclear threat to the West. It comes as a frightening interactive map shows what would happen if a nuclear bomb hit Dublin, Galway, Cork and Belfast.