books.google.com - The Gulf War has been the only conflict in the last half-century that featured the possible use of chemical-biological weapons against U.S. forces. Vulnerability to such an attack spurred the Department of Defense to action from the first hint of trouble in August 1990 through the end of hostilities...http://books.google.com/books/about/Chemical_Biological_Defense.html?id=BokYlz8qXwAC&utm_source=gb-gplus-shareChemical Biological Defense
