The disadvantages of the Norse in 867 are: Reformation can finally halt the Christian upstarts down south from ever expanding into your territory.Quick expansion from your native lands can quickly allow you to create the Empire of Scandinavia.With the Norse invasions of Britain it is possible to aid your fellow Vikings and therefore have a premise to take over the British isles.Norse raiders can travel throughout the river system (mainly through Rus).With Raiding you are able to send an army over to any rival faction's land and raid their goods for some nice cash.Ylving's Östergötland resides in the De jure of Norway) Subjugation CB allows you to take over the kingdom that your primary title resides in (eg.So the advantages of the Norse in 867 are as follows: