by the United Nations, United Nations Security Council Resolution 620
“ Determined to intensify its efforts to end all use of chemical weapons in violation of international obligations now and in the future, Condemns resolutely the use of chemical weapons in the conflict between Iran and Iraq, in violation of obligations under the Protocol for the Prohibition of the Use in War of Asphyxiating, Poisonous or Other Gases, and of Bacteriological Methods of Warfare, signed at Geneva on 17 June 1925, and in defiance of its resolution 612 (1988) ”
