Aaland wanted to join Sweden but Finland wanted to keep it. International arbitration ended with Finland keeping it and Aaland being given autonomy and had Swedish as sole official language.
In an ATL with both a culturally and linguistically majority Norwegian Kola and pretty much OTL Ålands, I think Finland would be hard-pressed to keep both through international arbitration, unless those making the decisions are blatantly pro-Finnish. Realistically, Finland would stand to lose at least one of them, and in case it already has a lot of land in Karelia as it is, it might conceivably lose both.