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 Ministers and other officials representing Canada, Denmark, Norway, Russia, and the United States met in Ilulissat, Greenland in May 2008, at the Arctic Ocean Conference and announced the Ilulissat Declaration. Among other things the declaration stated that any demarcation issues in the Arctic should be resolved on a bilateral basis between contesting parties. An example of such bilateral agreement was achieved between Russia and Norway in 2010. Part of Russia's current Arctic policy includes maintaining a military presence in the region. The Russian Northern Fleet, the largest of the four Russian Navy fleets, is headquartered in Severomorsk, in the Kola