Columbia subject headings:
Harvard subject headings:
Race discrimination--Europe--20th century.
Soldiers--Africa--History--20th century.
World War, 1914-1918--Africa.
World War, 1914-1918--Europe.
World War, 1914-1918--Participation, African.
Princeton subject headings:
Soldiers, Black--Europe--History--20th century.
World War, 1914-1918--Black people.
World War, 1914-1918--Europe.