Operation Top Hat

This article is about the 1953 U.S. Army exercise. For the 1971 British Navy expedition, see Rockall.

Operation Top Hat was a "local field exercise"[1] conducted by the United States Army Chemical Corps in 1953. The exercise involved the use of Chemical Corps personnel to test biological and chemical warfare decontamination methods. These personnel were deliberately exposed to these contaminants, so as to test decontamination.

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