Can Modern War Be Just?

Now that mankind has created the capability of destroying itself through nuclear technology, is it still possible to think in terms of a "just war"? Johnson argues that it is, and in the context of specific case studies he offers moral guidelines for addressing such major contemporary problems as terrorist activity in a foreign country, an individual's conscientious objection to military service, and an American defense policy that requires development of weapons that may be morally employed in case of need.