smaller municipalities use the plurality voting system. In the urban municipalities, the municipal councils are called town (or city) councils. Every municipality also has a Head of the Municipal Administration (načelnik občinske uprave), appointed by the mayor, who is responsible for the functioning of the local administration. Administrative districts There is no official intermediate unit between the municipalities and the Republic of Slovenia. The 62 administrative districts, officially called "Administrative Units" (upravne enote), are only subdivisions of the national government administration and are named after their respective bases of government offices. They are headed by a Manager of the Unit (načelnik upravne enote), appointed by the Minister of Public Administration. Traditional regions and identities Traditional regions were based on the former Habsburg crown lands that included Carniola, Carinthia, Styria, and the Littoral. Stronger than with either the Carniola as a whole, or with Slovenia as the state, Slovenes historically tend to identify themselves with the traditional regions of Slovene Littoral, Prekmurje, and even traditional (sub)regions, such as Upper, Lower and, to a lesser extent, Inner Carniola. The capital city Ljubljana was historically the administrative centre of Carniola and belonged to Inner Carniola, except for the Šentvid district, which was in Upper Carniola and also where the border between German-annexed territory and the Italian Province of Ljubljana was during the Second World War. Statistical regions The 12 statistical regions have no administrative function and are subdivided into two macroregions for the purpose of the Regional policy of the European Union. These two macroregions are: Eastern Slovenia (Vzhodna Slovenija – SI01), which groups the Mura, Drava, Carinthia, Savinja, Central Sava, Lower Sava, Southeast Slovenia, and Inner Carniola–Karst statistical regions. Western Slovenia (Zahodna Slovenija – SI02), which groups the Central Slovenia, Upper Carniola, Gorizia, and Coastal–Karst statistical regions. International interventions In 2022 Slovenia joined a list of nations banning Russian aircraft from its airspace as a sanction against it for invading Ukraine. Economy Slovenia has a developed economy and is the richest Slavic country by GDP per capita. Slovenia is also among the top global economies in terms of human capital. It is the most developed transition country with an old mining-industrial tradition, chemical industry, and developed service activities. Slovenia was in the beginning of 2007 the first new member to introduce the euro as its currency, replacing the tolar. Since 2010, it has been member of the Organisation for Economic Co-operation and