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File: 120596_aaday_02.txtT like Tabun. This was supposedly employed during the 1988 attack on the A1 Faw peninsula, and in several of the other operations which made up the Tawakalna Ala Allah campaign. However, we doubt this was the case. Similarly, we find no evidence whatsoever that the Iraqis have ever employed blood gasses such as Cyanogen Chloride or Hydrogen Cyanide. (U) Blood agents were allegedly responsible for the most infamous use of chemicals in the war--the killing of Kurds at Halabjah. Since the Iraqis have no history of using these two agents--and the Iranians do--this leads us to conclude the Iranians perpetrated this attack. It is also worth noting that, lethal concentrations of cyanogen are difficult to obtain over an area target, thus the reports of 5,000 Kurds dead in Halabjah are suspect. (U) Mustard gas--the one most commonly associated with Iraq--is relatively easy to handle, although it is a two-edged weapon. Its persistence is a function of humidity and temperature, making its use as a long-term contaminant--in European conditions--nearly ideal. In the Middle East, however, where temperatures soar above 100 degrees Fahrenheit, its persistence is significantly reduced--unless one of two alternatives is followed. It is possible to make it more persistent by thickening, and to do so without reducing its effectiveness, although its dispersal is reduced thereby. A second alternative is to impregnate a carrier with the agent, the preferred carrier [(b)(1)sec3.4(b)(1)] The principal form of this type is "Dusty Mustard," which made its first operational appearance during the Iran-Iraq War. It will be discussed later. (U) The tactics of employment are similar to other weapons having short or long-term effects. It is desirable to make the first volleys of any chemical attack a mixture of two agents, vomit or nausea agents and killer agents like Phosgene or Cyanogen. The soldier who is asleep or too slow masking either dies directly from the effects of the lethal agent or indirectly from having to mask and unmask while vomiting and in the process inhaling the lethal agent. (U) Persistent agents like Mustard are usually fired on artillery positions, lines of communication and likely counterattack routes as well as command and control installations. Against artillery, gas attacks are principally meant to slow down service of the guns, reduce the accuracy of sighting, and slow down the processing of commands. In most circumstances it produces a significant increase in gunner fatigue as body heat builds up inside protective suits.
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