I don't discard pressure because Americans do that all the time.

Anyway, for Finland, they lost 9% of their territory in 1940 https://en.wikipedia.org/wiki/Winter_War and they may be afraid of other invasion.

For Sweden I have no idea. But after playing a Risk-like game with ships for too many years while I was young, I think that https://en.wikipedia.org/wiki/Gotland is a nice place.