Columbia subject headings:
Europe, Eastern--Politics and government--20th century.
Europe--Military policy.
North Atlantic Treaty Organization.
Peaceful change (International relations)
Security, International.
United States--Military policy.
Harvard subject headings:
Europe, Eastern--Politics and government--20th century.
Europe--Military policy.
North Atlantic Treaty Organization
Peaceful change (International relations)
Security, International
United States--Military policy.
Princeton subject headings:
Europe, Eastern--Politics and government--20th century.
Europe--Military policy.
North Atlantic Treaty Organization.
Peaceful change (International relations)
United States--Military policy.