The divergent evolution of the Norse world from the 11th century onwards was, above all, influenced by each country's geopolitical limitations. This explains the different stages of military Europeanisation that each region attained up to the late twelfth century. Changes in warfare, initially obtained through imitation, slowly started to show growing regional differences from around 1200 AD onwards, a phenomenon mainly fuelled by the disparate conquest interests of the Scandinavian kingdoms.