The book "Medical Support in Nuclear, Biological, and Chemical Environments. Tactics, Techniques, Procedures" is published by the Department of the United States Army. This is a practical guide intended for military health workers who work in exceptional conditions. The book describes in detail the tactics and methods of conducting the medical service in the event of nuclear, biological or chemical threats. The authors offer clear instructions for protecting one's health, providing aid to the wounded, and treating those affected by poisonous substances. This book is an indispensable reference for military doctors and medical personnel who are ready to perform their tasks in the most dangerous conditions.