This is a must watch. Environmental Graffiti has a post up on the decades of experiments western armies undertook in an attempt to develop chemical warfare to render their enemies incapacitated: In short, armies gave their own soldiers LSD, and other psychedelic drugs, and studied the effects. The Nazis did it first, then Britain, and the U.S. and other countries followed suit.
The video below is from 1963 and shows British soldiers under the influence of LSD. From the narration:
"Fifty minutes after taking the drug, radio communication had become difficult, if not impossible. But the men are still capable of sustained physical effort; however, constructive action was still attempted by those retaining a sense of responsibility despite their physical symptoms. But one hour and ten minutes after taking the drug, with one man climbing a tree to feed the birds, the troop commander gave up, admitting that he could no longer control himself or his men. He himself then relapsed into laughter."