Wired had a interesting piece on this back in 2015: https://www.wired.com/2015/07/secret-cold-war-maps/ https://www.wired.com/2015/07/secret-cold-war-maps/ And

Wired had a interesting piece on this back in 2015: https://www.wired.com/2015/07/secret-cold-war-maps/ https://www.wired.com/2015/07/secret-cold-war-maps/ And with some spooky details on San Diego, California (and many other places): https://www.wired.com/2015/07/soviet-militarys-eerily-detailed-guide-san-diego/ https://www.wired.com/2015/07/soviet-militarys-eerily-detail...