[Rasklad]

I'm a Martial Artist and have done things I regret in the past. A lot of these things have made me see a lot of violence so having been around it so much, I know the stress, pain, fear, and suffering it can cause. My question is, although violence will never be wholly good, as either person will suffer in some way or another, is it ever justifiable and if so, when?

If I see a group of kids with obvious bad intentions approaching my girlfriend in an aggressive manner, I will try to talk them down in the short amount of time given but if they keep moving forward, I will without question attack. I'm sure that will bring up other issues and I don't want to ever have to hurt anyone but as we all know, there's always those looking to bring suffering to others and peace won't convince all of them.

So if it is in self defense of yourself or loved ones, is it alright or should I stand by and let someone attack my family as I try to 'talk them down'?

Where is the line? If anyone has any links on further discussion of this topic or it being covered thoroughly, I'd love to have it. Thanks in advance.