France is divided into 18 administrative regions (French:région, [ʁe.ʒjɔ̃]), including 13 metropolitan regions and 5 overseas regions. The 13 metropolitan regions (including 12 mainland regions and Corsica) are each further subdivided into 2 to 13 departments, while the overseas regions technically consist of only one department each. The current legal concept of region was adopted in 1982, and in 2016 what had been 27 regions was reduced to 18.