Are there times when it is justified to fight? For what?

Are there times when it is justified to fight? For what? Can you fight for something without becoming violent? How can you fight peacefully? What would you fight for? How and why? Sometime fighting for something is when you disagree with someone else opinion where you protest against what they want verses what you want in steed. Fighting is not a good thing, it surrounds so many countries today in the world. People getting killed, friends, and family members gone because of people fighting. All fighting doesn't have to all of a sudden become violent. There are many ways to start a sort of "say" peaceful fight where you just argue in a court room instead of taking it to extremes like on to a battle field. Though in the world case many fights end up to be violent because they sometimes begin as threats to it so that sometime when a fight will start. Like how many American Troops are over in Iraq right now fighting. Many people try to fight for what they believe in but that sometimes people will lose the battle and some will gain victory. A person might fight for what they believe in or what to see if others will stand by you on the way. Some people don't care if they do it alone some what others to people to know that they are not crazy and that others think that something else should be done about it. If I had to fight for something I don't no what it would be for. Depending on what the topic is and how I would disagree with it. Fighting is not a good thing in the world even in a court. The world in a lot of places is in fights right now with their own country or with a different country. So I don't think that fighting is a good thing and that all fights do not automatically go to be violent.