Outline of U.S. chemical weapons

The following outline is provided as an overview of and topical guide to U.S. chemical weapons: The United States chemical weapons program began in 1917 during World War I with the creation of the U.S. Army's Gas Service Section and ended 73 years later in 1990 with the country's practical adoption of the Chemical Weapons Convention (signed 1993; entered into force, 1997). Destruction of stockpiled chemical weapons began in 1985 and is still ongoing.

Source: Wikipedia — Outline of U.S. chemical weapons (CC BY-SA 4.0)