Every member is urged to send in their e-mail address.
The static nature of the conflict, consisting of opposing forces occupying parallel lines, provided the opportunity for toxic gas attacks when the wind was blowing in the desirable direction. The next stage was the use of artillery and aircraft to deliver chemical agents behind the front line. During the 1930's Schraeder, working on new pesticides at I. G. Farben in Germany, discovered that phosphonofluoridates were extremely toxic and thereby created the nerve agent class of CW agents. Like the organophosphorus insecticides, these compounds function by inhibiting acetylcholinesterase. The more toxic V-type agents appeared in the 1950's as a result of other pesticide research.