that. >> here we go. oh, my. oh, wow. this is a real army call. >> let's keep going this way. >> look at all this. all the light switches are still here. >> now you're going to crawl out into this big cavern that was where the actual missiles were and the launcher arms were in here. >> the missiles were in this room? >> yes. >> oh, wow. >> so right about here is where the missile arm would come up and the missile would have been above the ground and would have taken off. >> having to shoot an air invasion from russia was the thing of the time. >> back then you didn't know what was coming over the horizon at any moment. >> today the threats are different but he still plays a critical role communicating and tracking satellites key to the security of the united states and its allies. he provides a uniquing an until how we command and control satellites. here's our satellite dish. as you can tell, it's a lot bigger than the directv dish or