Columbia subject headings:
United States--Foreign relations--1933-1945.
World War, 1939-1945--Influence.
World politics.
Harvard subject headings:
United States--Foreign relations--1933-1945.
World War, 1939-1945--Influence.
World politics
Princeton subject headings:
United States--Foreign relations--1933-1945.
World War, 1939-1945--Influence.
World politics.