Columbia subject headings:
Administrative and political divisions--Europe.
Boundaries.
Names, Geographical--Europe.
World War, 1914-1918--Territorial questions.
Harvard subject headings:
Boundaries.
Europe--Administrative and political divisions.
Names, Geographical--Europe
World War, 1914-1918--Territorial questions
Princeton subject headings:
Administrative and political divisions--Europe.
Boundaries.
Names, Geographical--Europe.
World War, 1914-1918--Territorial questions.