Truthfully, it had very little effectiveness. For every time it disabled a group of enemy soldiers, it also disabled a group from the army that had used it, because of a sudden change of wind...
The first official chemical warfare started in WWI when the military threw bombs containing ammonia to the other side. The ammonia was mass produced through a new method called the Heiber process....
An unproven, but suspected third generation nerve agent more potent that VX and Soman nerve agents. Limited knowledge is available through unclassified medians, however, scientists claiming to have...