It was based on the United States Army's pentomic organisation and involved reorganising most of the Army's combat units into units based on five elements, rather than the previous three or four sub-elements.
Organisation for the Prohibition of Chemical Weapons | Commonwealth Scientific and Industrial Research Organisation | Organisation of African Unity | Organisation for Economic Co-operation and Development | Rank Organisation | British Darts Organisation | Indian Space Research Organisation | Defence Science and Technology Organisation | Polish Military Organisation | Organisation Todt | United Malays National Organisation | Organisation of Eastern Caribbean States | European Patent Organisation | Organisation de l'armée secrète | Shanghai Cooperation Organisation | Hellenic Railways Organisation | Ernst Thälmann Pioneer Organisation | Netherlands Organisation for Applied Scientific Research | Nature and Organisation | Internationalist Communist Organisation | Defence Research and Development Organisation | Australian Nuclear Science and Technology Organisation | VIS (criminal organisation) | United Kingdom Warning and Monitoring Organisation | The Carte Organisation | NVA (arts organisation) | Internal Western Outland Revolutionary Organisation | Intergovernmental Organisation for International Carriage by Rail | Elsham (organisation) | Defence Science and Technology Organisation (DSTO) |