The fact is that Putin’s Russia and the EU are engaged in a race against time: the question is which one will collapse first.
The Putin regime faces bankruptcy in 2017, when a large part of its foreign debt matures, and political turmoil may erupt sooner than that. The president’s popularity, which remains high, rests on a social compact requiring the government to deliver financial stability and a slowly but steadily rising standard of living. Western sanctions, coupled with the sharp decline in the price of oil, will force the regime to fail on both counts.
The most effective way Putin’s regime can avoid collapse is by causing the EU to collapse sooner. An EU that is coming apart at the seams will not be able to maintain the sanctions it imposed on Russia following its incursion into Ukraine. On the contrary, Putin will be able to gain considerable economic benefits from dividing Europe and exploiting the connections with commercial interests and anti-European parties that he has carefully cultivated.
http://www.theguardian.com/commentisfree/2016/feb/11/putin-threat-europe-islamic-state