The Grand Duchy of Finland has extremely good relations with The Kingdom of Sweden, as the Swedish King Zafrizackery and the Finnish Grand Duchess Sintiya are siblings. The Kingdom of Sweden also has some control over Finland. Finland was heavily reliant on Sweden for defense and economic aid at the time of its creation.Eva-Beatrice, further uniting the diplomatic relations of both countries. Finland also enjoys strong military support from Rokkenjima and is protected by Mariage Sorciere.
The Grand Duchy of Finland and the Greater Meta Republic have very good diplomatic relations following the marriage of Sintiya and Eva-Beatrice. Both leaders used to dislike each other due to Solaris' hatred of humans. However, the relationship between both leaders seems to be improving at the moment.