Border control is the implementation of border controls on travel between Svalbard, which maintains a policy of free migration as a result of the Svalbard Treaty (Norwegian: Svalbard-traktaten; ) and the Schengen Area, which includes the rest of Norway. The Kingdom of Denmark also maintains a complex system of subnational countries with autonomous customs policies, since they aren’t within the European Union like the Danish mainland. These are Greenland () and the Faroe Islands (). These areas do not maintain strict immigration controls with the Schengen Area, but border controls are sporadically enforced for customs purposes. Other examples of effective internal border
Basque Country (autonomous community) "Basque Country" may also refer to the larger cultural region (Basque: "Euskal Herria"), the home of the Basque people, which includes the autonomous community. The following provinces make up the autonomous community: The Basque Country borders Cantabria and the Burgos province to the west, the Bay of Biscay to the north, France (Nouvelle-Aquitaine) and Navarre to the east and La Rioja (the Ebro River) to the south. The territory has three distinct areas, which are defined by the two parallel ranges of the Basque Mountains. The main range of mountains forms the watershed between the Atlantic and Mediterranean basins. The