Linked from
The 21 pages that link to Chemical warfare, each with the reason it gives.
Nerve agentNarrower topic: Nerve agents became among the most potent weapons in chemical warfare.
SarinNarrower topic: Sarin is a nerve agent developed and used within this broader practice.
Blood agentNarrower topic: Blood agents are one class of chemicals developed for chemical warfare.
SomanNarrower topic: Soman was developed as a chemical-warfare agent.
Cyanogen chlorideNarrower topic: Cyanogen chloride has been used as a chemical warfare agent.