Synopsis Various evidences can be found for the existence of forms of chemical and biological warfare in ancient and classical periods. Many early accounts portray outbreaks of disease in invading armies or among conquerors as divine intervention. In the world of today there are a number of countries across the world who are vowed to retaliate by developing biological weapons. The biological weapons include any organism such as bacteria, viruses or fungi to toxin found in nature that can be used to kill or inure people. The book is an incisive manual on Biological Warfare.