Newsreel. Gas attack during the First World War (1915); soldiers in gas masks. Gas chambers that were used to kill people in concentration camps during World War II. Meeting room of the Nuremberg Trials; in the dock - the main Nazi war criminals (1945-1946). The population of Abyssinia affected by chemical weapons during the Italian invasion of Abyssinia (1935). US aggression in Lebanon, Vietnam with the use of chemical weapons. Lost people; destroyed bamboo forests. Chemical maneuvers of American troops in Europe. Children with congenital abnormalities resulting from chemical poisoning of their parents. Chemical weapons experts interview. Meeting room of the 2nd UN Special Assembly on Disarmament. A. A. Gromyko goes to the podium. Demonstration of protest against chemical weapons in European cities. Peace march.