The Government has committed to a multibillion-pound replacement of Trident with nuclear warheads based on US technology, Pentagon officials have revealed.
The US military has deployed a new addition to its nuclear arsenal, a long-range missile armed with a nuclear warhead of reduced destructive power.
The UK, France and Germany have begun proceedings against Iran over breaches of its nuclear deal.
Poor management of the infrastructure to build and maintain Britain’s Trident nuclear deterrent has led to years of delays and cost overruns of more than £1 billion, the Whitehall spending watchdog has warned.
Iran’s nuclear deal with world powers is in danger of falling apart, Russia’s foreign minister has warned.
Launching more than 100 nuclear warheads at a foe would catastrophically backfire on any nation deploying them, a study has shown.
Britain is prepared to pay for access to the European nuclear organisation Euratom after Brexit, provided the country gets “a suitable level of influence” within it, Theresa May said.