A view of a nuclear powered submarine in the industrial and militarized Russian seaport city of Murmansk, Murmansk Oblast, Russia, Arctic, Europe

nuclear submarine murmansk russia military seaport arctic naval dock submarine fleet maritime industrial murmansk oblast security defense waterway arctic ocean tugboat vessels russian navy maritime activity military presence cold war ocean submerged seafloor shipbuilding port facilities military operations naval base arctic region ocean navigation arctic landscape water transport coastal city military infrastructure strategic location arctic shipping russian seapower coastal defense military assets submarine technology naval operations arctic waters fleet movements sea access ship docking military alliances underwater naval strategy warships