By pure coincidence, next month brings not one but two major turning points for Serbia. First, there’s the Ahtisaari plan for Kosovo. As we all know, the plan would give Kosovo de facto independence. On one hand, that’s just recognizing reality on the ground; 90% of Kosovo’s population wants nothing to do with Serbia, and they’ve been running their own house for almost a decade now. On the other hand, it would involve UN approval of the involuntary dismemberment of an unwilling member state. That’s never happened before, and it would be a big step into the unknown. The plan...