Weapon of Mass Destruction
Biological weapons are considered to be one of the most dangerous and destructive types of Weapons of Mass Destruction (WMDs) in existence. These weapons use pathogens, toxins, or other biological agents to cause harm to living organisms such as humans, animals, and plants.
The history of biological warfare dates back to ancient times when armies used contaminated materials such as animal carcasses to spread disease among enemy troops. However, the modern era of biological warfare began in the early 20th century when scientists began to explore the use of bacteria and viruses as weapons.
During World War II, several countries including Japan, Germany, and the United States conducted research on biological weapons. Japan used biological weapons against Chinese civilians and military personnel during the Second Sino-Japanese War, causing widespread death and suffering. The United States also developed biological weapons but did not use them in combat.