( All quotes in the excerpt are properly footnoted in the original book, with full references to British archives and papers. Excerpt from pages 179-181 of Simons, Geoff. "IRAQ: FROM SUMER TO SUDAN". London: St. Martins Press, 1994 ):

Winston Churchill, as colonial secretary, was sensitive to the cost of policing the Empire; and was in consequence keen to exploit the potential of modern technology. This strategy had particular relevance to operations in Iraq. On 19 February, 1920, before the start of the Arab uprising, Churchill (then Secretary for War and Air) wrote to Sir Hugh Trenchard, the pioneer of air warfare. Would it be possible for Trenchard to take control of Iraq? This would entail "the provision of some kind of asphyxiating bombs calculated to cause disablement of some kind but not death...for use in preliminary operations against turbulent tribes."

Churchill was in no doubt that gas could be profitably employed against the Kurds and Iraqis (as well as against other peoples in the Empire): "I do not understand this sqeamishness about the use of gas. I am strongly in favour of using poison gas against uncivilised tribes." Henry Wilson shared Churchills enthusiasm for gas as an instrument of colonial control but the British cabinet was reluctant to sanction the use of a weapon that had caused such misery and revulsion in the First World War. Churchill himself was keen to argue that gas, fired from ground-based guns or dropped from aircraft, would cause "only discomfort or illness, but not death" to dissident tribespeople; but his optimistic view of the effects of gas were mistaken. It was likely that the suggested gas would permanently damage eyesight and "kill children and sickly persons, more especially as the people against whom we intend to use it have no medical knowledge with which to supply antidotes."

Churchill remained unimpressed by such considerations, arguing that the use of gas, a "scientific expedient," should not be prevented "by the prejudices of those who do not think clearly". In the event, gas was used against the Iraqi rebels with excellent moral effect "though gas shells were not dropped from aircraft because of practical difficulties [.....]"