The history of chemical warfare dates from antiquity. Chemical weapons have been a part of warfare in most societies for centuries. However, their usage has been extremely controversial since the 20th
Gassed, historic 1919 painting by John Singer Sargent depicting the aftermath of a mustard gas attack. Chemical weapons were first used on a vast scale in World War I.
The Art of War described the use of fire weapons against the enemy.
Christoph Bernhard von Galen tried to use toxic fumes during the siege of the city of Groningen in 1672.
Lyon Playfair proposed the industrial manufacture of cyanide artillery shells for use during the Crimean War.
Ba'athist Syria researched, manufactured, stockpiled, and allegedly used chemical weapons, and pursued the production of nuclear weapons.
Before and after satellite image of destroyed undeclared reactor, 2007.
Satellite photo of the destroyed site
Intelligence photo of the alleged reactor vessel under construction
Intelligence photo of the alleged reactor head and fuel channels under construction