| World War, 1914-1918 -- Causes. Matches 70 items |
| World War, 1914-1918 -- Causes -- Congresses. Matches 1 item |
| World War, 1914-1918 -- Causes -- Sources. Matches 1 item |
| World War, 1914-1918 -- Chaplains. Matches 1 item |
| World War, 1914-1918 -- Chaplains -- France. Matches 1 item |
| World War, 1914-1918 -- Chemical warfare. Matches 5 items |
| World War, 1914-1918 -- Chemical warfare -- Germany. Matches 1 item |
| World War, 1914-1918 -- Chemical warfare -- Great Britain. Matches 2 items |
| World War, 1914-1918 -- Chronology. Matches 3 items |
| World War, 1914-1918 -- Civilian relief. Matches 2 items |