Columbia subject headings:
Germany--Foreign relations--1918-1933.
Russo-Polish War, 1919-1920--Diplomatic history.
Harvard subject headings:
Germany--Foreign relations--Poland.
Germany--Foreign relations--Soviet Union.
Poland--Foreign relations--Germany
Russo-Polish War, 1919-1920.
Soviet Union--Foreign relations--Germany.
Princeton subject headings:
Germany--Foreign relations--1918-1933.
Russo-Polish War, 1919-1920--Diplomatic history.