*Well, people used to theorize about this "balkan-net" or "splinternet," but now we've got working hardware.
*The reason you want one of these is not to defend yourself, it's so your state-supported marauders can thrown Molotovs over the wall and you don't burn. That's what's been going on since the Ukraine war broke out, and this decade will be the one where it formalizes. Everybody's doing it, more or less: China leads, but Russia, the EU, Arab autocracies, Brexitania, Trumpistan, they're all into it.
Post-global ethnonational intranets are us
Speaking earlier this week to the state-owned news outlet Tass, Putin explained that this was purely a defensive play.
Runet, he said, “is aimed only at preventing adverse consequences of global disconnection from the global network, which is largely controlled from abroad. This is the point, this is what sovereignty is — to have our resources that can be turned on so that we would not be cut from the Internet.”
More recent reports, in Tass and Pravda as relayed by the BBC, indicated that this effort has gone beyond the theoretical to the practical.