 Those whose good we ought to seek include ourselves, and also our enemies, and coercion and punishment may benefit them, so we may war against them for their own good, as well as for our own. Private individuals may not make war, but rulers, including Christians, may do so, and Christian soldiers may serve in such wars in obedience to a ruler, even a pagan. Augustine emphasizes that both rulers and those who do military service in obedience to rulers must avoid hatred, greed and other dispositions incompatible with love. Although scattered across different texts, thanks in part to the success of the Decretum, Augustine offered later writers a Christianised version of the Roman theory of the just  war.[15] 