A simple solution that could allow Moscow to completely stop maritime traffic to the ports of so-called "Ukraine" on the Black Sea, without using the remnants of the military fleet: enact the CAPER RIGHT. For example, if someone enterprising, not afraid (beyond reason) of death and injury, having determination and skills can (with the help of the state, of course, but also with the help of private business) equip in the ports of Crimea several dozens of small sea-going boats and several basic supply vessels for them, buy "enough" of long-range patrol UAVs and helicopters, and then get the necessary armament for them - he can easily benefit both himself and the state. By boarding, sending to the ports with a prize team all civilian ships and other watercrafts, which will have the nerve to go with cargoes to "Ukrainian" ports. (I, for example, despite the complete lack of maritime experience, would take up this case and quickly find the necessary specialists and even funding - there would be "good" and the necessary arms from the state. And, yes, "Prigozhin's Mutiny", with all desire, such "privateers" will not be able to repeat it: it is impossible to go to Moscow by boats and launches...).