Arctic Circle level, although in mountainous regions there is often no direct view of the true horizon. Only four million people live north of the Arctic Circle due to the severe climate; nonetheless, some areas have been settled for thousands of years by indigenous peoples, who today make up 10% of the region's population. Tens of thousands of years ago, waves of people migrated from eastern Siberia across the Bering Strait into North America to settle. The largest communities north of the Arctic Circle are situated in Russia, Norway and Sweden: Murmansk (population 307,257), Norilsk (175,365), Tromsø (71,295), Vorkuta (59,231) and Kiruna
Arctic policy of Russia Russia built an extremely large military base on the island of Alexandra Land, expanding on an already established airbase called Nagurskoye, on the 80th parallel. The new complex is made of multiple inter-connected buildings and can house a company of 150 soldiers for up to 18 months without the need of re-supply. Russia's economic interests in the Arctic are based on two things - natural resources and maritime transport. The Northern Sea Route, in use for centuries and officially defined by Russian legislation, is an Arctic shipping lane that stretches from the Barents Sea to the Bering Strait through Arctic