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Erase the Red Line
The rebels in Syria could be excused for wondering what U.S. policy toward them might be. At times, President Barack Obama has implied that the United States can’t do much to help them because none of them has been gassed. By threatening “enormous consequences” should the Syrian regime use chemical weapons, he seemed to be saying that the first chemical attack would bring the Americans running in, guns blazing. Although understandable, that is likely to be a substantial misreading of the message coming out Washington.
The notion that killing with gas is more reprehensible than killing with bullets or shrapnel came out of World War I, in which chemical weapons, introduced by the Germans in 1915, were used extensively. The British emphasized the weapons’ inhumane aspects as part of their ongoing program to entice the United States into taking their side in the war. It is estimated that the British quintupled their gas casualty figures from the first German attack for dramatic effect.
As it happened, chemical weapons accounted for considerably less than one percent of the battle deaths in the war, and, on average, it took over a ton of gas to produce a single fatality. Only about two or three percent of those gassed on the Western front died. By contrast, wounds from a traditional weapon proved 10 to 12 times more likely to be fatal. After the war, some military analysts such as Basil Liddell Hart came to believe that chemical warfare was comparatively humane -- these weapons could incapacitate troops without killing many.
But that view lost out to the one that the British propagandists had put forward -- that chemical weapons were uniquely horrible and must, therefore, be banned. For the most part, the militaries of the combatant nations were quite happy to get rid of the weapons. As the official British history of the war concludes (in a footnote), gas "made war uncomfortable ... to no purpose."
To be sure, some armies occasionally still saw a purpose. Iraq made extensive use of chemical weapons in its 1980-88 war against Iran (to little outside protest). Their effectiveness in killing in that conflict remains a matter of some controversy. According to Iranian reports, of the 27,000 Iranians gassed through March 1987, only 262 died.