Sealand

All I know is, when is the movie about this guy going to come out.

In 1967, Paddy Roy Bates was just another run-of-the-mill Army major-cum-fisherman-cum-pirate radio operator, minding his own business and blithely disregarding British broadcasting law. But the British - sticklers for things like laws (especially British ones) - were none too keen on Bates' activites, and they convicted him on a charge of radio piracy. Now, it's common knowledge that getting tried and convicted in a court of law leaves a man with two clear options: 1) go to jail; or 2) abscond to an abandoned WWII-era naval defense platform in international waters, claim you've founded a new nation and declare yourself royal prince. It takes a certain sort of person to determine that, of these two options, the latter is clearly superior. And Bates was that sort of person.

The great part about that teaser paragraph is that the article, and the story, only gets better from there.