Bomb 'em, claim it's an accident, blame it on weather, inexperience,
confusion and other stuff. Offer lots of cash as reparations. Tell 'em
you'll make a "no bomb" zone that you'll try to stick to.

So selling weapons/weapon parts to conflicts makes you and your workforce
legal targets? Well actually the workforce, their families and basically
everyone that happens to live in that city.
If Germany would have bombed cities in USA to rubble before decleration of
war you would have accepted it because, hey there were aiding the allied war
effort?
Obviously Germany didn't have capacity for that, but that is just an
example.