Switzerland has been neutral for 200 years, not suffering from loss of life due to wars.
Not really neutral anymore. It's been absorbed into the EU and NATO systems (and it would be hard not to be).
Switzerland in its entirety has an underground nuclear bunker; everyone is connected. Why would a neutral country need such a thing? Unless Switzerland knows what is to come.
This was built during World War 2, I think, when Hitler was planning to attack Switzerland and called it Europe's pimple. Anyhow, underground bunkers are for defence - you can't really use them if it's off Swiss land.
If Switzerland has such an impressive underground bunker, what's not to say that they already have people living underground? Maybe the "current population" of Switzerland is just the number of people ABOVE ground?
Oh my, we might even get over 20 million folk total population Switz.
Who's not to say that Switzerland hasn't been digging tunnels under other countries? They could have underground access to all of Europe even as we speak!!
Seismology of some kind would detect that, as well as power lines and other tunnels/tubes.
Swiss banking times are over.