Time Tested Solution
In the years before Napoleon dismantled it, Voltaire quipped that the Holy Roman Empire was "neither holy, nor Roman, nor an empire." Well, of course not. It was an amalgamation of independent German kingdoms, fiefdoms, and statelets, lightly bound together by a powerless Grand Moose or whatever with no revenue, army, courts, or police.
Much the same goes today for the United Nations. It is neither united, nor nations.
Oh sure, there are quite a few honest-to-goodness real nation-states in the UN