Chemical warfare does not depend upon explosive force to achieve an objective. Rather it depends upon the unique properties of the chemical agent weaponized. A lethal agent is designed to injure or incapacitate the enemy, or deny unhindered use of a particular area of terrain. Defoliants are used to quickly kill vegetation and deny its use for cover and concealment. It can also be used against agriculture and livestock to promote hunger and starvation. Air becomes harmful to be exposed to and some chemicals may cause a depletion of oxygen. The application of producing and distributing oxygen can be applied to an internal environment to continue living.
Pollution: With the continuation of the release of pollutants everyday, there may come a time where oxygen can no longer be produced. There are many more molecules that have a higher affinity to be carried and populate the air.
