Columbia subject headings:
Germany--Foreign relations--United States.
United States--Foreign relations--Germany.
World War, 1914-1918--Diplomatic history.
Harvard subject headings:
Germany--Foreign relations--United States.
United States--Foreign relations--Germany.
World War, 1914-1918--Diplomatic history
Princeton subject headings:
Germany--Foreign relations--United States.
United States--Foreign relations--Germany.
World War, 1914-1918--Diplomatic history.