Hans-Herbert Kögler offers an insightful analysis and a potent moral call to support the defence of Ukraine. This is a sensible moral position that I also share. However, I question Kögler’s approach which overemphasises the ethical arguments alone. I argue that wars do not allow for moral absolutism of any kind and that the best one can do in the conditions of warfare is to endorse a version of contextual morality. Furthermore, I make a case for using the accumulated knowledge of historical sociology to understand the dynamics of war in Ukraine. Building on this knowledge one can advance a multipart argument that favours the continuous support for the defence of Ukraine.