Geography of Russia , the Russian border is the world's longest. Along the 20,139-kilometer land frontier, Russia has boundaries with 14 countries: Norway, Finland, Estonia, Latvia, Lithuania, Poland (via the Kaliningrad Oblast), Belarus, Ukraine, Georgia, Azerbaijan, Kazakhstan, Mongolia, the People's Republic of China and North Korea. Approximately two-thirds of the frontier is bounded by seawater. Virtually all of the lengthy northern coast is well above the Arctic Circle; except for the port of Murmansk—which receives currents that are somewhat warmer than would be expected at that latitude, due to the effects of the Gulf Stream—that coast is locked in ice much of the
Naval War: Arctic Circle therefore in October 2013 the backend source code was released to the game community to allow self-support. "Naval War: Arctic Circle" takes place in 2030, throughout the North Atlantic, Arctic Ocean and the Baltic Sea. The game revolves around an imagined conflict in the Arctic Circle, where melting ice caps have opened up the region to exploitation for its raw materials. There are two differing single-player campaigns, narrated and played from Russian and NATO perspectives, and a 4-part tutorial. Additionally, one-on-one multiplayer gaming is possible through Steam services. The game environment consists of a 35 mil km map, and features