Columbia subject headings:
Brazil--Strategic aspects.
National security--International cooperation.
Security, International.
Southern Cone of South America--Foreign relations--United States.
United States--Foreign relations--Southern Cone of South America.
Harvard subject headings:
Brazil--Strategic aspects.
National security--International cooperation
Security, International.
Southern Cone of South America--Foreign relations--United States.
United States--Foreign relations--Southern Cone of South America.
Princeton subject headings: