The momentous events of 1989-1991 marked the end of the Soviet Union and, as a result, its threat to the interests of the free world. One of those free-world interests was-and is-the ability to use the planet's seas and oceans on all lawful occasions. Another is not to be threatened by hostile seaborne forces.
Though most ships of the old Soviet fleet still exist, the political will to use them as the old rulers used them has vanished. Now an impoverished and geographically, demographically, and industrially reduced Russia has difficulty even in maintaining the visible shells of its former naval might.
Anderson, Gary, "Beyond Mahan: Proposal for U.S Naval Strategy in the 21st Century" (1993). The Newport Papers. 5.