The world is entering an unmapped era of nuclear risk. The answer is not new explosive tests, but a coordinated campaign with allies to maximize deterrence while working to establish new norms against further expansion of nuclear weapons and managing the use of AI in decision-making systems.

President Trump’s decision to end Washington’s moratorium on nuclear testing offers a window for New Delhi to reassess its nuclear arsenal

It’s been the staple of various film or TV show plots, though some might remember it more specifically as being the devious plan of Dr Evil in the first Austin Powers movie: the world is held to ransom as a megalomaniac villain threatens to trigger volcanic eruptions by detonating a nuclear weapon either on top of or inside an active volcano.

President Trump explained the order by saying other, unnamed nations were testing their own nuclear weapons, even though no country has tested since 2017.

A drone was downed and detonated about 800 metres (875 yards) from the perimeter of Ukraine's South Ukraine nuclear power plant overnight, the International Atomic Energy Agency said in a