Columbia subject headings:
Harvard subject headings:
Collective memory--Germany--History--20th century--Congresses.
Collective memory--Great Britain--History--20th century--Congresses.
World War, 1914-1918--Social aspects--Germany--Congresses.
World War, 1914-1918--Social aspects--Great Britain--Congresses.
Princeton subject headings:
World War, 1914-1918--Monuments.