Chemical Warfare A Study of Restraints Author:Frederic J. Brown This book analyzes the employment of toxic agents during the First World War and the subsequent pattern of restraints as they evolved during the interwar years. Part I examines the use of toxic agents in World War I as it influenced subsequent national policy decisions. Part II focuses on the evolution of political, military, economic, and psych... more »ological restraints to American employment of toxic agents from 1919 to 1939. Part III discusses World War II during two critical periods: 1939 to early 1942, when the environment of the war was being established essentially without the influence of the United States; and during 1945, when the U. S. did not face a credible threat of retaliation to deter its use of toxic agents.« less