Stumbled across this new volume by Daniel Bell, due from Brazos in October: Just War as Christian Discipleship: Recentering the Tradition in the Church rather than the State. From the publisher:
This 
provocative and timely primer on the just war tradition connects just war to the concrete practices and challenges of the Christian life. Daniel Bell explains that the point is not simply to know the just war tradition but to live it even in the face of the tremendous difficulties associated with war. He shows how just war practice, if it is to be understood as a faithful form of Christian discipleship, must be rooted in and shaped by the fundamental convictions and confessions of the faith.
