"We go to war that we may have peace" -- The fundamental ideas of just war -- The Catholic vocabulary of war : the center and the fringe of Catholic just war doctrine -- Muslin and Jewish just war traditions : the center and the fringe -- The questions of sequence and scale -- Saying no and saying yes : protest and the integrity of language in times of war -- A just war theory for the twenty-first century -- Three concluding principles -- Afterword : on the second Gulf War.