Not that I can read right now. Yurself?
There are two different motives for the decision as I understand it for now, first following the very mild response of the EU authorities and to be honest not very much attention was paid to the Latvia events against the Russian community there that were hatred motivated, it has allowed a strong nationalist reaction in Russia and cornered the Kremlin to show willingness and readiness to stop any event of that nature to be repeated whatever the cost, it has touched a very sensible cord. Second, the willingness to enforce today a decision of the Presidium of the Supreme Soviet of the Soviet Union Over Crimea sovereignty and its People could have been guessed unacceptable locally, Crimea native population was to react should they be imposed a doubt over who their loyalty and resources will be devoted to, the events in Kiev brought the issue and the response could not have been different, the call for help to Moscow was therefore inevitable not to mention the strategic Russian navy base located there.
U know what, it crossed my mind but what's described today as a possibility of Ukraine's invasion is overplayed and the Russian politics underestimated.