His 102: World War I

The following are Library of Congress subject headings that can be used to search the Library Catalog.

• World War, 1914-1918--Personal narratives
• World War, 1914-1918--Chemical warfare
• World War, 1914-1918--Aerial operations
• World War, 1914-1918--Naval operations
• World War, 1914-1918--Tunnel warfare
• World War, 1914-1918--Engineering and construction
• World War, 1914-1918--Tank warfare
• World War, 1914-1918--Military intelligence
• [Country]--History, Naval--20th century
• Air warfare--History--20th century
• Genocide
• Strategy--History--20th century
• [Country]--Military policy

Try an advanced search in the catalog.  Use World War, 1914-1918 as a subject heading and combine it with keywords relative to your topic (ex. Genocide, or "trench warfare", or bomb*)