Lawrence of Arabia and Winston Churchill both supported using poison gas on Iraqis.

Old Blog Import

Some other British leaders were equally blood-thirsty. After the revolt of 1920, TE Lawrence — Lawrence of Arabia — wrote to the London Observer to say: It is odd that we do not use poison gas on these occasions.”

And also:

I am strongly in favour of using poisoned gas against uncivilised tribes” Winston Churchill

Full story here.