That is what they want, North Korea is on a list of very few countries countries that don't have a internationally linked central bank(in partnership with the UN banks), IRAN is another one.
They want access to run the country, that is what all these wars since ww2 are about. it's the roman model of conquest, pick a tribe devastate it's enemies(Rome brings a wasteland and calls it "peace", Tacitus) then lend the people the money to rebuild their land, you create debt slaves.
It's in the history books they don't teach it to the masses but it's there.