Hornus, Jean-Michel. It Is Not Lawful For Me To Fight: Early Christian Attitudes Toward War, Violence, and the State. Trans. Alan Kreider and Oliver Coburn. (Scottdale: Herald Press, 1980).
Kalantzis, George. Caesar and the Lamb: Early Christian Attitudes on War and Military Service. (Eugene: Wipf and Stock, 2012).
Kreider, Alan. The Patient Ferment of the Early Church: The Improbable Rise of Christianity in the Roman Empire. (Grand Rapids: Baker Academic, 2016). Reviewed by Jamin Hübner in The Journal of Greco-Roman Christianity and Judaism 13:2017.