Should the UK further develop its nuclear capability for defence?

The UK maintains a nuclear deterrent based on Trident submarine-launched ballistic missiles, with continuous at-sea patrols. In June 2026 the government announced a 10-year Defence Investment Plan that includes upgrading the nuclear deterrent alongside spending £64 billion on nuclear weapons, expected to reach 25% of the military budget. This occurs amid rising global tensions with Russia, China and concerns over undersea infrastructure and AUKUS submarine collaboration.