CAB 120/691

Cabinet Office report on ‘Operation Unthinkable’, a secret plan drawn up at the end of the Second World War for the UK and US to go to war with Russia.

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National security

Some of the most famous plots and sieges all feature in The National Archives’ collection. Discover the tortured signature of Guy Fawkes, put on the rack for the Gunpowder Plot and the Cato Street conspiracy with spikes intended for the heads of government ministers.

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