That contention was supported by Moscow's rather bold move to effectively instruct the US-led coalition to keep its planes out of the sky starting last Wednesday. Ultimately, The Kremlin has declared a monopoly on Syrian air space for the duration of Russia's military campaign, marking an epic embarrassment for Washington, and serving notice to the anti-regime forces operating in Syria that there's a new sheriff in town. 

Well, don't look now, but in addition to the de facto no-fly zone, some experts are out suggesting that Russia is set to use its Black Sea fleet to enforce a blockade on the Syrian coast. Here's Sputnik:

Russia's Black Sea Fleet may be used in Syria to blockade the Syrian coastline and deliver armaments, as well as possibly deliver artillery strikes, the head of Russian State Duma's defense committee and former Black Sea Fleet commander Vladimir Komoyedov said.

"Regarding the large-scale use of the Black Sea Fleet in this operation, I don't think it will happen, but in terms of a coastal blockade, I think that it's quite [possible]. The delivery of artillery strikes hasn't been excluded; the ships are ready for this, but there is no point in it for now. The terrorists are in deep, where the artillery cannot reach," Komoyedov said.