Here I mean by groups that seek to re-unite very divergent ethnic/linguistic groups on the bases of a common ethnic/lingustic heritage, often in the distance past and with a lot of romanticism involved. So no garden variety irredentism here (e.g. "Greater" Romania, Serbia, Italy, Somalia, etc.).
What's do you think is the most far-fetched and unrealistic of these movements?
What's do you think is the most far-fetched and unrealistic of these movements?