Impeding passage through the straits is another reason for alarm for Russia’s neighbors. Not much has been noted about Turkey closing the straits to Russian warships. That gives Turkey much leverage to influence the peace when the hostilities end. Turkey might demand a peace treaty before reopening the straits to Russian warships, effectively bottling them up in the Black Sea until a peace treaty is formalized.
Turkey has closed the straits to *all* warships, not just Russian ones.