The maneuvers in the field must be read according to this perspective: for Russia the Black Sea is indispensable because it is the obliged passage not only towards the Mediterranean, but also towards the Atlantic and the Indo-Pacific. It is through the Black Sea that Moscow can reach lines of maritime communication otherwise precluded.
Although the conflict between Russia and Ukraine is fought primarily on land, the maritime dimension is neither alien to the conduct of operations nor to the strategic motivations of the two sides.
Many media talk about logistic difficulties of Russian Armed Forces in Ukraine, referring generically to poor planning and obsolescence of deployed assets. In reality it is necessary to investigate the specific "operational attrition of the Russian Armed Forces' support and supply fleet.