Columbia subject headings:
United States--History--Civil War, 1861-1865--Campaigns.
World War, 1914-1918--Campaigns.
World War, 1939-1945--Campaigns.
Harvard subject headings:
United States--History--Civil War, 1861-1865--Campaigns.
World War, 1914-1918--Campaigns
World War, 1939-1945--Campaigns.
Princeton subject headings:
United States--History--Civil War, 1861-1865--Campaigns.
World War, 1914-1918--Campaigns.
World War, 1939-1945--Campaigns.