Croatia and Albania get admitted to NATO. Macedonia does not:

Greece announced earlier it will veto any attempt to allow Macedonia to join until the dispute over the name of this former Yugoslav republic is solved.

It’s a shame that this couldn’t’ve been resolved, given that Macedonia’s territorial integrity can tend towards the uncertain due to Albanian irredentism. Then again, it’s not much of a surprise that it wasn’t, given that Greece has rarely played a constructive role in the Balkans, especially in recent memory.