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