[quote=@Cyclone]
Gnomish chemists actively research chemical agents and such in the Commonwealth. Is any other nation even mentioned to be pursuing chemical weapons, much less willing to use or produce them?
[/quote]

Well, some of my exports are chemicals and chemicals are really easy to use/make, so I'd probably have a stock of chlorine shells and mustard gas somewhere. But I'd be hesitant to use them unless I really, really despise someone, like the rare northern rebels.