Columbia subject headings:
Europe--History, Military--20th century.
Forests and forestry.
France--History, Military--20th century.
Reconstruction (1914-1939)--France.
Strategy.
World War, 1914-1918--Campaigns--France.
Harvard subject headings:
Forests and forestry--Military aspects--France.
France--Historical geography.
France--History, Military.
Strategy
War--Environmental aspects--France.
World War, 1914-1918--Battlefields--France
Princeton subject headings:
Europe--History, Military--20th century.
Forests and forestry.
France--History, Military--20th century.
Reconstruction (1914-1939)--France.
Strategy.
World War, 1914-1918--Campaigns--France.