Book excerpt: Chemical Warfare during the Vietnam War documents the use of antipersonnel chemical weapons throughout the Vietnam War, and explores their effectiveness under the wide variety of circumstances in which they were employed. The short, readable account follows the US program as it progressed from a focus on the humanitarian aspects of non-lethal chemicals to their use as a means of increasing and enhancing the destructiveness of traditional weapons. It also presents the efforts of the North Vietnamese to both counter US chemical operations and to develop a chemical capability of their own. This largely overlooked facet of the Vietnam War provides an opportunity for students and scholars to examine many of the potential issues surrounding the use of non-lethal chemical agents in modern military operations, and serves as a backdrop to discussion of broader issues associated with chemical warfare, including the power of public perception. Chemical Warfare during the Vietnam War is a comprehensive and thoroughly fascinating examination of riot-control agents during the Vietnam War.