Columbia subject headings:
Harvard subject headings:
North Atlantic Region--Strategic aspects.
North Atlantic Treaty Organization
Scandinavia--Military relations--Soviet Union.
Soviet Union--Military policy.
Soviet Union--Military relations--Scandinavia.
Princeton subject headings:
Arctic Ocean--Strategic aspects.
North Atlantic Ocean--Strategic aspects.
Scandinavia--Defenses.
Sea-power--Soviet Union.
Soviet Union--Defenses.