From Business Insider:

In order to capitalize on a changing Arctic, Russia is undertaking a major military upgrade of its northern coast and outlying Arctic archipelagos. These bases — which include search-and-rescue stations, military ports and airstrips, and military headquarters — are positioning Russia to become the dominant power in the region.

The Northern Fleet itself is due for a massive upgrade starting in 2015 that will last through the rest of the decade. The fleet has been upgraded to a unit called the Russian Joint Strategic Command North (JSCN), which, according to the Polish Institute of International Affairs, won’t be an ordinary naval force.