War is it good for

War  is certainly necessary in today's world. Violence is the only language some people will speak. Terrorists, for example are so bent on destroying their targeted group of individuals, that they will absolutely not listen to reason or explanation against it. A nation must arm against these terrorists so that we can kill them before they kill us. It is similar to self-defense in this case that we are just protecting ourselves. War is not always used as a safeguard however; nations go to war for economic and political reasons including stimulating their economy and growing their nation. While I do not condone this type of war, I think that this is a natural part in human evolution. During and after a war the economy booms in a nation. This stimulus makes life easier on the people in the country. New technology is also founded during wars. As nations invade each other ideas and resources are spread from nation to nation which lead to scientific innovation.