Politico interviewed Riho Ühtegi (Estonian SOF) it always seemed like a reasonable reference for this. "Russians can get to Tallinn in two days…maybe. But they can’t get all of Estonia in two days. [...] They will die in Tallinn & they know this. They will get fire from every corner, at every step"

I don't remember if I read it on Youtube or pre-Husk Twitter, but someone observed that this war is the greatest evidence ever that Pan-Slavism *is* a thing...it just doesn't include Russia for very, very obvious reasons!