
On 1 December 2017, Hawaii’s nuclear war siren network was tested for the first time since the Cold War. Then, on 13 January, a message was sent to that state’s mobile phone networks warning of an incoming ballistic attack (38 long minutes later, this was corrected). On 25 January, the Doomsday Clock was put forward to two minutes to midnight by the Bulletin of the Atomic Scientists, and on 2 February, the US Government published its Nuclear Posture Review, proposing a new arsenal of tactical weapons.
In the space of a few months, the West was transported back to a time that until recently seemed impossibly distant – a time when a new American president was expanding his military ambitions, and a British prime minister was doing anything in her power to galvanise that special relationship.