Is war ever a good thing? Is there any cause for which you would go to war?

To me war is not a good thing. In my opinion it is a pointless way of settling differences. All was is, is sending people to die for a cause they might not believe in. But in some ways it can be good. WWII for example, if the Nazis were not taken out of power they would have killed all of the Jewish people and taken over most in not all of the world. In most cases thought war is just a very dumb way of settling problems between people who are too thick headed to sit down talk to each other. Now I would only go to war as a last choice. To me the easiest way to settle differences is to sit down and talk it over to end it before you send hundreds of people to fight agents someone to prove that you are right and they are wrong. A cause I would go to war for would be to save people, like in the case of the Jews, or to help a country that is being oppressed by a bigger country. Besides that I can't really find any other reason why i would need to go to war. There is almost always a diplomatic solution to every problem. And if it is one of those problems that does not have a diplomatic solution then I would try to stay out of it, and if that isn't possible then the only other choice it to go to war, well that or let your self be attacked and taken over. In all war is pointless if you can talk it over and settle the problem before hundreds die.