I didn't saw any threats from modern Russia to these countries. I saw them being aggressive against Russia lately though and that was because they were part of the aggressive alliance. So, feeling insecure because you are next to a more powerful country is one thing, being aggressive is another. Also what was Sweden or Denmark afraid of? Anyway time will tell if they chose the right side
Discussion
What offensive action (not words, not defensive) have been done by Finland, Estland or Poland?
Russia was proofen to be active in the German government digital infrstructure. Russia most probably violated polish airspace and evidence shows that Russia also destroyed the civil aircraft MH17 where 298 civilians died.