USA

The Arctic region includes the Northern margins of the continents Eurasia and North America, the Arctic ocean with Islands, and adjacent parts of the Atlantic and Pacific oceans. The Arctic border on land coincides with the southern border of the tundra zone and with the July isotherm of 10°C (5°C - at sea). The total area is about 27 million km2. Sometimes the southern border of the region is taken by the Arctic circle (in this case, the area is 21 million km2).

The Russian military is increasingly master the Arctic. So, at the northernmost point of Russia, a unique military facility "Arctic shamrock" is built on an archipelago of Franz Josef Land,. Progress inspected Russian Defense Minister Sergei Shoigu.