The ad states »

Now you can own one of the rarest nuclear hardened underground structures in the world!

This was a part of the Stanley R. Mickelesen Safeguard Complex located in NE North Dakota. This property, for sale by owner, was one of 4 Sprint Missile Sites located approximately 10-20 miles from a central radar control site. Constructed in the early 1970’s, these bases were a last line of defense meant to intercept ICBMs coming over the North Pole. There was only 1 Safeguard Complex ever completed making this unique property an incredibly rare opportunity.

I couldn’t imagine some domestic far-right extremist group like the Proud Boys or the Hells Angels wouldn’t be interested.