A more useful way of approaching success or failure is to view peacemaking and diplomacy as a web of different relationships that contributed to ultimate success or failure. Successful peacemaking in the twelfth century was, in many ways, more about how to make peace than it was about the longevity of the terms of individual agreements. Peacemaking involving the Danish kings further shows that the principles and practice altered slightly over the course of the medieval period. War in the medieval period broke out because participants thought that they had more to gain from war than from keeping the peace. The notion that successful peacemaking in the Viking period rested on a shared concept of peace through Christianity, achieved mainly through sponsorship at baptism or at confirmation, is a well-attested phenomenon in early medieval Europe.