If the events in Ukraine are to appear as more than a series of disconnected events, you really must take the long view. So if you want to understand why it looked last night as though war was about to break out in the Crimea, perhaps take a look at this piece of analysis by Stratfor. It's a company that focuses on geography and history to explain what is happening in the world. Stratfor makes its money by signing up paying subscribers, but makes some of its work freely available. The book from which this is taken, The next hundred years, is also worth reading.
For those who find Britain's asymetric constitutional geometry intriguing, and others who simply like good radio, this documentary by Douglas Fraser, BBC Scotland's Political Editor, makes intriguing listening. It is called "Who pays for the High Road North" and it was first broadcast on BBC Radio 4. I would have called it "A Bridge too Far," but that betrays my scepticism about devolution in general and the Scottish variety in particular. Enjoy.