The complicated life and career of Fritz Haber, father of chemical warfare
STORY BY STEPHEN J. THORNE
On April 22, 1915, Canadian and Algerian troops holding the line on the Ypres salient watched as an ominous yellow-green cloud rose from the opposing German trenches and, carried by a light northeast wind, approached low and slow.
The cloud was, in fact, more than 160 tonnes of poisonous chlorine gas and as it rolled over the French colonials on the Canadians’ left flank, the Algerian soldiers began choking and gasping for air. Some turned and ran, but the gas followed them. The nearest Algerians made for the Canadian trenches across the road.
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