Title: Chemical soldiers
Subjects: Asphyxiating and poisonous Gases, Chemical warfare, Great Britain, Great Britain. Army. Royal Engineers. Special Brigade, History, Regimental histories, War use, World War, 1914-1918, Gases, asphyxiating and poisonous, Great britain, army, World war, 1914-1918, regimental histories
Places: Great Britain
Time periods: 20th century