Somewhere in my father's house there is a photo of a very young TMW sitting on the knee of my Great Uncle in the late 1960s. This was a man who'd served the First World war as an infantryman, and had a permanent limp and a gaunt, pale countenance. One thing you can't see in the photo is the stiff leather corset he wore around his torso due to being gassed (to support his lungs apparently, without it he could hardly take a breath without coughing) over fifty years earlier.
So I hope you'll understand if I respectfully disagree with employing chemical weapons on anyone; they've always struck me as the most heartless, insidious and evil of man's creations.
I'm not keen on nuking people either but a land invasion against fanatic's on home territory with a track record like theirs, it would have been awful for the allies, worse for the Japanese too. Killing as many of them as possible without actually having to fight them resulted in an overall reduction of casualties and so i'm ok with the prospect of Japan being WMD'd to death in 1945/1946.
They sowed the seeds and I dont see why we should have lost hundreds of thousands in order to put a stop to their menace.
Thank god that they gave up before it was necessary to gas them all but i'm also grateful for the opportunity for the world to see the true reality of nuclear war which has no doubt helped to stave off anyone else using them since.