Columbia subject headings:
Colombia--Foreign relations--United States.
Drug control--Colombia.
Economic assistance, American--Colombia.
Military assistance, American--Colombia.
National security--Colombia.
United States--Foreign relations--Colombia.
Harvard subject headings:
Colombia--Foreign relations--United States.
Drug control--Colombia
Economic assistance, American--Colombia
Military assistance, American--Colombia.
National security--Colombia
United States--Foreign relations--Colombia.
Princeton subject headings:
Colombia--Foreign relations--United States.
Drug control--Colombia.
Economic assistance, American--Colombia.
Military assistance, American--Colombia.
National security--Colombia.
United States--Foreign relations--Colombia.