Columbia subject headings:
Caribbean Area--Politics and government.
Central America--Economic conditions.
Central America--Politics and government.
Peace.
Harvard subject headings:
Caribbean Area--Politics and government
Central America--Economic conditions.
Central America--Politics and government.
Peace
Princeton subject headings:
Canals, Interoceanic.
Caribbean Area--Foreign relations.
Caribbean Area--Politics and government.
Central America--Foreign relations.
Central America--Politics and government.
National security--Caribbean Area.
National security--Central America.
Panama Canal (Panama)--Politics and government.
Panama, Isthmus of (Panama)--Politics and government.
Peace.
Trade routes--Caribbean Area.
Trade routes--Central America.