The application of reason to Christian faith gains expression in theological analysis and pronouncement. In the Wesleyan Quadrilateral this is a source of guidance for understanding and interpreting scripture.

Two millennia of Christianity have yielded a variety of theological perspectives on war and peace, some of them contradictory. Here we are particularly interested in theologies that undergird belief and action in the 21st century. First we examine the two oldest and most prominent expressions: pacifism and just war theory. Then we look at Liberation Theology as it has developed in the last fifty years; and an emerging theology of Just Peace.