In reply to mockerkin:
yup, for example if the helicopters mess up your livestock you will have a chance.
> Can he sue for destruction of this fell, perhaps on historical grounds or defamation od his family name?
ah, maybe not in this case.
Out of curiosity how much have they buggered it up? Military training areas and ranges normally tend to do well in terms of condition compared to farming areas (although upland areas may be different from lowland where more intense agricultural practices put shells to shame).