Well, in a way, he is doing just that :)
The opposite of war is not peace. The opposite of war is absence of conflict. Peace is something temporary you get once the kids have gone off to grandma's for the night. Yet, the "conflict" of your life remains (bills, job, relationships, money problems, etc.) As long as there are repressive dictatorships, there will be no "peace." And you can't just send them off to grandma's for the night.
And the presence of justice. If there's no justice, it's just tyranny and oppression.