Professor John Milbank has published an article on ABC Religion and Ethics entitled ‘Power is Necessary for Peace: In Defence of Constantine’. The lede reads: ‘In her great travelogue about the former Yugoslavia, Black Lamb and Grey Falcon, as well as in her novel The Birds Fall Down, the British writer Rebecca West grappled with the issue of whether one should preserve ideological purity at all costs, or whether one should compromise with the expediencies of power.’