Russian historian Andrei Zubov is convinced that Russian President Vladimir Putin will not aggravate the situation in Ukraine provided he receives a tough response to his actions in Syria.

This opinion he voiced in an interview with "Apostrophe".

"The Kremlin is now finding out how far it can go. In Syria, he went far: the use of chemical weapons, in fact the Russian troops along with the Iranian war on the side of Assad and have almost supplanted the opposition from most areas, except those where it is under the protection of, say, the US military. And here it is important for him to know: can this go on or not? If it can, then in Ukraine there can be something else, "Zubov said..

According to him, the Russian president should be limited by strict measures, which was recently done in Syria.

"If he gets very strict limits - and they were delivered both by the Allied missile attack a few days ago and by the missile strike of Israel - then the Kremlin will feel that it is necessary to stop in Ukraine. Therefore, the degree of impunity in Syria will influence how pro-Kremlin forces in Ukraine are active, "the historian sums up..