This was stated today by former Putin’s adviser Andrei Illarionov: http://24tv.ua/home/showSingleNews.do?you_have_two_days_to_settle_the_si... :
“The Kremlin plan has launched in the summer of 2013. As it stands, this plan is in full motion and can't be stopped by diplomatic means.
"Ukraine has only two days to settle the situation in Crimea otherwise a disaster will occur. Putin will conquer Southern and Eastern Ukraine after Crimea.
In Crimea, twenty-two thousand Ukrainian troops are deployed.
Next week, Russia plans to begin Full-scale combat operations in Crimea.
So there is an urgent need to conduct negotiations with the Kremlin in order
TO START THE EVACUATION OF UKRAINIAN TROOPS & WEAPONS



