Apparently the USSR actually went and built a doomsday machine – something that would launch command missles which would transmit coordinates to other ICBMs in the event that the Soviet Union was destroyed. The system, called ‘Perimiter’ and known as ‘Dead Hand’ basically ran through some checks and then delegated launch authority to whoever it could reach.

The Soviets kept this a secret as their principle use for the system was not deterrence towards the US, but to calm hotheads in the Soviet military and to stop them from throwing up independant first strikes when the going got stressy, as the hotheads knew that if the USSR went down, they’d get their revenge.

Inside the Apocalyptic Soviet Doomsday Machine.