Columbia subject headings:
Harvard subject headings:
Deterrence (Strategy)
International economic relations--History--21st century.
National security--United States
Russia (Federation)--Foreign relations--21st century.
Security, International
United States--Foreign relations--2009-2017
World politics--21st century
Princeton subject headings:
International economic relations--History--21st century.
National security--United States.
Security, International.
United States--Foreign relations--2009-.
World politics--21st century.