The US is planning to station nuclear weapons in the UK for the first time in 15 years amid a growing threat from Russia, according to a report.
RAF Lakenheath in Suffolk would be home to warheads with three times the power of the Hiroshima bomb, the Telegraph reported.
The US previously placed nuclear missiles there, removing them in 2008 when the Cold War threat from Moscow had receded.
Pentagon documents seen by the paper reveal procurement contracts for a new facility at the airbase in East Anglia.
It comes after a top Nato military official warned that all-out war with Russia is a possibility within the next 20 years.
Admiral Rob Bauer told reporters private citizens need to ready themselves for a potential conflict that would change their lives.