Columbia subject headings:
France--Religion.
World War, 1914-1918--Religious aspects.
Harvard subject headings:
France--Ethnic relations.
France--Politics and government--1914-1940.
France--Religion.
Sects--France.
World War, 1914-1918--Religious aspects
Princeton subject headings:
World War, 1914-1918--France.
World War, 1914-1918--Religious aspects.