Editing Nerve agent (section)

===Novichok agents===
{{Main|Novichok agent}}
The Novichok (Russian: {{Lang|ru|Новичо́к}}, "newcomer") agents, a series of [[organophosphate]] compounds, were developed in the [[Soviet Union]] and in Russia from the mid-1960s to the 1990s. The Novichok program aimed to develop and manufacture highly deadly chemical weapons that were unknown to the West. The new agents were designed to be undetectable by standard NATO chemical-detection equipment and overcome contemporary chemical-protective equipment.

In addition to the newly developed "third generation" weapons, binary versions of several Soviet agents were developed and were designated as "Novichok" agents.