Any region of any country where the population no longer wishes to remain a part of that state should have the right to secede, in my opinion. In such a case, the state should "give in" and let the seperatists go. In most cases (as probably would have happened in Chechnya, eventually, if it weren't for Yeltsin's personal dislike of Dudaev), the new state would be unable to sustain itself, and return to it's mother country in exchange for greater autonomy.

In the case of Chechnya, I'm hoping for a broader revolt in Russia's North Caucasus, and a new Trans-Caucasian state. Which, yeah, will probably not happen, but, hey, if I was "Russia," that's what I'd aim for. ;)

---Lepus Rex