France is mainly divided into 18 administrative regions: 13 regions in metropolitan France (including the territorial collectivity of Corsica), and five located overseas. The regions are further subdivided into 101 departments, which are numbered mainly alphabetically. This number is used in postal codes and was formerly used on vehicle number plates. Among the 101 departments of France, five (French Guiana, Guadeloupe, Martinique, Mayotte, and Réunion) are in overseas regions (ROMs) that are also simultaneously overseas departments (DOMs), enjoy exactly the same status as metropolitan departments and are an integral part of the European Union. The 101 departments are subdivided into 335
Administrative divisions of Mongolia on each tier: Administrative divisions of Mongolia The country of Mongolia is divided into 21 provinces (, "aimag") and the capital (нийслэл, "niislel") Ulaanbaatar. Secondary subdivisions outside Ulaanbaatar are called "sum" (сум, often transcribed as "soum"). In 2006, Mongolia had 331 sums. Sums are further subdivided into bags (баг). While sums always have a permanent settlement as administrative center, many bags don't. Ulaanbaatar is divided into nine düüregs (дүүрэг, usually translated as "district"), which are further subdivided into khoroos (хороо, most often translated as "subdistrict", "microdistrict" or simply "district"). Officially, Mongolia is divided into 3 administrative tiers, with different types