.WHEN RUSSIA attacked in February 2022 Ukraine hardly had a navy. The guardians scuttled their one frigate to prevent Russia coming from appropriating it. Pair of years eventually Ukraine is having a hard time to keep back a Russian onslaught on land-- yet it is gaining the battle Sea as well as has actually cracked the Russian clog of its surface ships. Its success have often depended upon swift technical technology: intermittent naval force relies on crewed ships to combat, however Ukraine has constructed a line of drone boats, or uncrewed surface lorries (USVs). How are they forming the battle mixed-up?