ni akoole ninu ISO 3166-2, apa opagun ISO 3166 ti International Organization for Standardization (ISO) tejadesiwe to setumo awon amioro fun oruko awon ipinsabe koko awon orile-ede.ItokasiISO 3166.. 
 using first the multi-National Aia, then the “Committee for studies of the upper Congo” (), and finally the international Association of the Congo (), Léopold secured control of most of the Congo Basin.. 