It sounds like some of this is an issue of perspective and interpretation (how we view the situation).
Personally I think much of this comes down to a case-by-case walk with God (or something like that).
To quote Solomon "There is a time for everything, and a season for every activity under heaven:" (Ecc 3:1 NIV)
The question was asked if violence (fighting) would be a good response to attempted rape, to the point of killing the rapist. My answer would be no, not if it could be helped (a swift kick to the groin or a broken leg might be the best use of violence to give the person a chance to run).
It sometimes seems odd that the same God who became man and taught us to "turn the other cheek" also commanded his people to "kill every last one of them" in the OT. Same God (and he never changes) but seemingly different messages.
Generally I'd have to agree with everyone else, that (aside from war) offensive fighting is wrong, it doesn't really solve anything.
Defensive fighting on the other hand, well, that's more of that case-by-case thing.
PHIL