Iraqi chemical and biological weapons
Iraq has admitted to manufacturing the chemical agents mustard gas, VX, sarin and tabun before the 1991 Gulf War, although much of this has been destroyed by UNSCOM inspectors.
However, the UK Government estimates that 360 tonnes of chemical warfare agent remain unaccounted for – and that Iraq could produce mustard gas within weeks and nerve agents such as VX, tabun and sarin within months.
Iraq says anything that has not been destroyed will have degraded beyond use by now.
Click on the links to read about the different chemical agents.