Make sure that Bitcoin-friendly nation has its own nuclear arsenal with intercontinental strike capability. The US is not above starting a war to stop another nation competing against the dollar, if it's low-risk to the rulers. Just look at how the US openly threatened the ICC the other year. Which kind of limits the choices available at present. Russia and China are not alternatives. Israel is right out, the Mossad or the Shin-Bet would bundle you up like Eichmann and hand you over if the USFor. Dep. coughed. So... India or Pakistan? Or DPRK.