5. PRODUCTION, IMPORT/EXPORT, USE, AND DISPOSAL
2011-11-2 · PRODUCTION, IMPORT/EXPORT, USE, AND DISPOSAL 5.2 IMPORT/EXPORT Sulfur mustard is not imported into or exported from the United States. 5.3 USE The principal use of sulfur mustard was as a vesicant chemical warfare agent. The Germans first used it against the British during World War I during the battle of Flanders, near Ypres, Belgium, in 1917
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