For its official works and publications, the United Nations Organization groups countries under a classification of regions. The assignment of countries or areas to specific groupings is for <answer>statistical convenience</answer> and does not imply any assumption regarding political or other affiliation of countries or territories by the United Nations. Southern Europe, as grouped for <answer>statistical convenience</answer> by the United Nations (the sub-regions according to the UN), includes following countries and territories:
What is the reason for the UNO's division into regions?
statistical convenience