Nothing is sadder than war, and yet nothing seems more common. While it is tempting to sit back and hope conflict will just go away, there is really no hope for this. That reality forces us to think about matters we would rather not: What is the right attitude toward war? What is the right discipleship attitude toward it? Is war ever permitted? If not, why not? And if it is, under what circumstances? What can possibly justify the devastation and human misery entailed by military conflict?