[The United States and Biological Warfare] is a major contribution to our understanding of the past involvement by the US and Japanese governments with BW, with important, crucial implications for the future.... Pieces of this story, including the Korean War allegations, have been told before, but never so authoritatively, and with such a convincing foundation in historical research.... This is a brave and significant scholarly contribution on a matter of great importance to the future of humanity. -Richard Falk, Albert G. Milbank Professor of International Law and Practice, Princeton University The United States and Biological Warfare argues persuasively that the United States experimented with and deployed biological weapons during the Korean War. Endicott and Hagerman explore the political and moral dimensions of this issue, asking what restraints were applied or forgotten in those years of ideological and political passion and military crisis. For the first time, there is hard evidence that the United States lied both to Congress and the American public in saying that the American biological warfare program was purely defensive and for retaliation only. The truth is that a large and sophisticated biological weapons system was developed as an offensive weapon of opportunity in the post-World War II years. From newly declassified American, Canadian, and British documents, and with the cooperation of the Chinese Central Archives in giving the authors the first access by foreigners to relevant classified documents, Endicott and Hagerman have been able to tell the previously hidden story of the extension of the limits of modern war to include the use of medical science, the most morally laden of sciences with respect to the sanctity of human life. They show how the germ warfare program developed collaboratively by Great Britain, Canada, and the United States during the Second World War, together with information gathered from the Japanese at the end