(I think I edited my post before seeing your reply, but I've forgotten what I originally wrote, so could you explain that a bit? I'm apparently not working with all mental systems on right now.)
edit: Wait, no, I'm just being thick, I see what you're replying to.
Yugoslavia is equivalent to neither Spain nor the Warsaw Pact. It wasn't as powerful or effectively authoritarian as the USSR, which is why such protracted secessionists movements were possible, but also wasn't quite as tied to the approval of other nations or of its own populace as Spain. The result is that they were neither swiftly crushed, nor able to achieve independence peacefully.