The USA had an equivalent system, but used a different approach; "Operation Looking Glass" sent (hardened) command aircraft airborne 24/7 to provide continual c

The USA had an equivalent system, but used a different approach; "Operation Looking Glass" sent (hardened) command aircraft airborne 24/7 to provide continual command and control capabilities to silos and submarines, even in the event of a successful decapitation first strike.[1] [1] https://en.wikipedia.org/wiki/Operation_Looking_Glass https://en.wikipedia.org/wiki/Operation_Looking_Glass