.WHEN RUSSIA occupied in February 2022 Ukraine barely had a naval force. The defenders scuttled their one frigate to avoid Russia coming from seizing it. 2 years eventually Ukraine is having a hard time to hold back a Russian offensive ashore-- yet it is winning the war Ocean and has cracked the Russian clog of its own surface ships. Its triumphes have actually often relied on rapid technical innovation: intermittent naval force relies upon crewed ships to eliminate, however Ukraine has developed a squadron of drone watercrafts, or even uncrewed surface vehicles (USVs). How are they forming the war at sea?