Columbia subject headings:
Harvard subject headings:
France--Foreign relations--Germany.
Germany--Foreign relations--France.
Germany--History--Allied occupation, 1918-1930.
Germany--History--Revolution, 1918.
Rhineland (Germany)--History--Separatist movement, 1918-1924.
Princeton subject headings:
France--Foreign relations--Germany.
Germany--Foreign relations--France.
Germany--History--Allied occupation, 1918-1930.
Germany--History--Revolution, 1918.
Rhine River Valley--History--Separatist movement, 1918-1924.