Here is the aftermath of a German chlorine gas attack against a British emplacement in Fromelles, France, during World War I. Chlorine gas precipitates death by asphyxiation. The use of masks is an effective military countermeasure, however when used in unprepared urban civilian populations, chlorine gas can cause widespread casualties.
September 1, 2013 4:00 AM PDT
Photo by: Wikipedia/Hermann Rex
| Caption by: James Martin
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