What kinds of chemicals are used to create chemical weapons, and what has been done to protect soldiers and civilians from chemical attacks? Readers will discover the answers to these questions and more as they take a closer look at chemical weapons, including their earliest uses and their most advanced forms. Accessible text and photographs explain the technology and science behind chemical weapons to readers, and fact boxes provide additional information. Readers also explore the various antidotes, vaccines, and protective clothing developed throughout history to counteract chemical weapons.