Serious question, if the United States decided to unilaterally cut North Korea off from the Internet, how hard would that be to do? Could we just knock out a few cables? North Korea pretty much only uses the Internet for scams Or to make money in violation of sanctions. They certainly don’t allow their citizens to use it for anything else, and they don’t allow their citizens to leave the country because they would ne…
You will have to cut cables going to Russia (and\or out of Russia) and China at least.
Not to mention wireless comms.