Donald Trump’s call to resume US nuclear weapons testing shatters decades of restraint, risks triggering a new global arms race, and exposes a perilous ignorance of nuclear policy and deterrence.

A growing tide of British veterans, suffering from cancers, psychiatric injuries, and chronic disabilities they link to toxic exposures and neglect during service, are challenging what they see as a Ministry of Defence culture of denial, delay and silence that has left them injured twice – first by their duty, and then by their government.