.WHEN RUSSIA got into in February 2022 Ukraine scarcely possessed a naval force. The defenders scuttled their one frigate to prevent Russia coming from appropriating it. Two years later Ukraine is actually straining to hold off a Russian offensive ashore-- yet it is winning the war in the Black Ocean and also has actually broken the Russian clog of its own surface ships. Its triumphes have usually relied on swift technological development: every other naval force relies on crewed ships to combat, but Ukraine has created a squadron of drone watercrafts, or uncrewed surface automobiles (USVs). Just how are they forming the battle at sea?