The "authority" exists to defend socialist states from the imperialist capitalist states, dummy. Communist states are not going around establishing hundreds of military bases, carpet bombing and genociding countries and creating a media-military propaganda machine for their citizens to fear boogeymen for the horrors their own politicians and corporations are committing against them. This is something Britain, USA and other colonial European states have done and/or are doing to this day since over 5 centuries. In fact, all Western countries that claim to be democracies were full on dictatorships until they looted off hundreds of trillions from Eastern and colonised countries.