Just and Unjust Wars: A Moral Argument with Historical Illustrations
Penguin, Harmondsworth, 1980, pp. 359
Highly regarded interpretation of just war theory. See also his earlier essays on war and disobedience, including an essay on conscientious objection in: Walzer, Michael , Obligations: Essays on Disobedience, War and Citizenship [2] [1970] Cambridge MA, Harvard University Press, , 1982, pp. 260