Columbia subject headings:
Chile--Foreign relations--Peru.
Chile--History--War with Peru, 1879-1882.
Peru--Foreign relations--Chile.
Harvard subject headings:
Chile--Foreign relations--Peru.
Peru--Foreign relations--Chile.
War of the Pacific, 1879-1884.
Princeton subject headings:
Chile--Foreign relations--Peru.
Chile--History--War with Peru, 1879-1882.
Peru--Foreign relations--Chile.