The use of chemical weapons by US forces was explicitly banned by President Gerald Ford in 1975 after CS gas had been repeatedly used in Vietnam to smoke out enemy soldiers and then kill them as they ran away. Britain would be in a particularly sensitive position if the US used the weapons as it drafted the convention and is still seen internationally as its most important guardian.
The [UK] Foreign Office [Minister of State, Mike O’Brien] said: “All state parties to the Chemical Weapons Convention have undertaken not to use any toxic chemical or its precursor, including riot-control agents. This applies in any armed conflict.”
This spectacular 2,000 page US military leak consists of the names, group structure and equipment registers of all units in Iraq with US army equipment . It exposes secretive document exploitation centers, detainee operations, elements of the State Department, Air Force, Navy and Marines units, the Iraqi police and coalition forces from Poland, Denmark, Ukraine, Latvia, Slovakia, Romania, Armenia, Kazakhstan and El Salvador. The material represents nearly the entire order of battle for US forces in Iraq and is the first public revelation of many of the military units described. Among other matters it shows that the United States has violated the Chemical Weapons Convention.