The most blatant example of this was the movie "Threads."
Funny thing was the Russians almost launched a mutually assured destruction attack on 9-26-1983 because of a faulty signal. The man who was supposed to launch the attack refused the order. They’ve since automated the launch (if sensors detect radiation) so the human factor has been removed.
https://en.wikipedia.org/wiki/1983_Soviet_nuclear_false_alarm_incident
But it was “bad ol’ Reagan” who was gonna kill us all.