Peace comes when you talk to the guy you most hate. And that's where the courage of a leader comes, because when you sit down with your enemy, you as a leader must already have very considerable confidence from your own constituency.
Whatever course you decide upon, there is always someone to tell you that you are wrong. There are always difficulties arising which tempt you to believe that your critics are right. To map out a course of action and follow it to an end requires courage.