Columbia subject headings:
Europe, Central--Strategic aspects.
Europe--Military relations--Russia (Federation)
North Atlantic Treaty Organization--Membership.
Russia (Federation)--Military relations--Europe.
Harvard subject headings:
Europe, Central--Strategic aspects.
Europe--Military relations--Russia (Federation)
North Atlantic Treaty Organization--Membership.
Russia (Federation)--Military relations--Europe.
Princeton subject headings:
Europe, Central--Strategic aspects.
Europe--Military relations--Russia (Federation).
North Atlantic Treaty Organization--Membership.
Russia (Federation)--Military relations--Europe.