Mandates may cover several mediators in the same conflict. This may result in questions of coordination, notably of who should be in the lead. This becomes particularly difficult if great powers are significant actors – for instance, if conflicts are close to them – or for other reasons of strategic significance. There is also a problem of forum shopping, where the warring parties attempt to find mediators that are closest to their interests. Furthermore, there can be rivalries between regional and international organizations. Some of the Nordic experiences are recounted as well as ways to manage these issues.