Chemical weapon in the 20th and 21st centuries. Part 3. Organophosphorus chemical warfare agents used until the year 1970. V-group

The article contains the knowledge about the V-group of organophosphorus chemical warfare agents, named nerve agents, used since their discovery until the year 1970. Group V is the second consecutive collection of CW agents and it contains a number of chemical substances, which were considered up to the year 2018, to be the most toxic chemical compounds included in the arsenal of chemical weapons. Keywords: organophosphorus toxic agents, chemical weapon, II World War, post-war period, Cold War