VX nerve agent is a modern-day chemical warfare agent which falls under the category of Nerve agent. It is derived from organophosphorus (OPC). These OPC are used to produce insecticides and from them nerve agents are made. VX is one of the most lethal agents because of its chemical properties that allow VX to stay in the environment for a long time. It is considered to be more poisonous that the nerve gas which was used in Wolrd war -II by Germany. VX agent inhibits acetylcholine hydrolysis which leads to muscular spasms and causes death.