Peace is one of the biggest goods for Augustine, not only in eternal life, but also in temporal. On the one hand peace is complete in the eternal life; on the other, peace is a doubtful and uncertain good in temporal life. This statement makes sense if we consider that in the creation’s order all temporal life is mediated by the original sin. In this way it could be considered that peace and order are exclusive of eternal life. Nevertheless, it is not possible, because without peace in earthly life we wouldn’t be able to have progress and social life. Thus, in this paper it will be shown how Augustine, despite of his criticism on Cicero´s concept of the republic, acknowledges how politics determines and makes possible peace on earth.