Any re-classification of these kind of words is fundamentally motivated by self-interest.

The classic example is 'terrorism'. Whole books have been written about its definition, although it can easily be defined as such:

'the unlawful use or threatened use of force or violence by a person or an organized group against people or property with the intention of intimidating or coercing societies or governments, often for ideological or political reasons.'

This classification is fine, but has been rejected in the UN on numerous occasions by certain members. Prevailing powers will always define language according to their needs, this is one topic of Macbeth, btw. Thus terrorism must exempt all home-grown violence, but include convert enemy operations.