Columbia subject headings:
Military planning--United States.
United States--History, Military--20th century.
World War, 1939-1945--Campaigns--Japan.
World War, 1939-1945--Military intelligence--United States.
Harvard subject headings:
Atomic bomb--Japan.
Military planning--United States.
United States--History, Military--20th century.
World War, 1939-1945--Campaigns--Japan.
World War, 1939-1945--Military intelligence--United States.
Princeton subject headings:
Military planning--United States.
United States--History, Military--20th century.
World War, 1939-1945--Campaigns--Japan.
World War, 1939-1945--Military intelligence--United States.