arch/ive/ief (2000 - 2005)

"According to documents released in the US yesterday, nearly 6,000 American troops took part in the tests to examine the combat uses of the agents. Many of the soldiers were not told of the substances to which they were exposed."

Read more on:
http://www.news.scotsman.com/international.cfm?id=723372003

See also:

US admits to 50 secret tests of bio weapons on troops

"The Pentagon used potentially dangerous chemical and biological agents in 50 secret tests involving US military personnel in a decade-long project to measure the weapons' combat capabilities, according to Pentagon findings.

The tests were done between 1962 and 1973 and involved 5,842 service members. Many were not told of the tests, some of which involved releases of deadly nerve agents in Alaska and Hawaii."
http://www.smh.com.au/articles/2003/07/01/1056825376086.html

No criminal trial over Britain's chemical warfare "guinea pigs"

"LONDON (AFP) Jul 08, 2003
An inquiry into the deaths of British soldiers allegedly used as "guinea pigs" over 50 years in chemical warfare tests, has ruled there is insufficient evidence for a criminal trial, state prosecutors said Tuesday."
http://www.spacewar.com/2003/030708150903.6dowl98n.html