Biological warfare, also known as germ warfare, is the use of biological toxins or infectious agents such as bacteria, viruses, insects, and fungi with the intent to kill, harm or incapacitate humans,
U.S. Air Force Master Sgt. Jess V. Hernandez, right, assigned to the 119th Maintenance Squadron, leads Airmen through extreme cold, harsh winds and snow on their way to chemical and biological warfare training
Shirō Ishii, commander of Unit 731, which performed human vivisections and other biological experimentation
Researchers working in Class III cabinets at the US Army Biological Warfare Laboratories, Camp Detrick, Maryland (1940s).
US authorities granted Unit 731 officials immunity from prosecution in return for access to their research.
Fort Detrick is located in Frederick, Maryland. Fort Detrick was the center of the U.S. biological weapons program from 1943 to 1969. Since the discontinuation of that program, it hosted most elements
Sign at one of the installation's gates
Frederick City Hall Aerial
Ft Detrick Area B ECON310