Columbia subject headings:
United States--Defenses.
United States--Politics and government--1933-1945.
World War, 1939-1945--United States.
Harvard subject headings:
United States--Defenses.
United States--Politics and government--1933-1953.
World War, 1939-1945--United States.
Princeton subject headings:
United States--Defenses.
United States--Politics and government--1933-1953.
World War, 1939-1945--United States.