Lenihan, David. “The Just War Theory in the Work of Saint Augustine.” Augustinian Studies, Vol. 19 (1988), pp. 37-70.  

Abstract:

“While accepting the morality of military service, per se, Augustine condems private violence of any sort and forbids libidinous violence while in military service. Augustine’s approach to the morality of military service is subjective, a subjectivity that has inherent defects. Considered in his context, Augustine is clearly in continuity with the tradition of of peace from earliest times and divorced from any later spirit of violence or militarism.”

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