.WHEN RUSSIA occupied in February 2022 Ukraine hardly had a naval force. The guardians scuttled their one frigate to prevent Russia coming from appropriating it. Pair of years later on Ukraine is actually battling to hold back a Russian offensive on land-- but it is gaining the war in the Black Ocean and has actually broken the Russian blockade of its own grain ships. Its triumphes have usually depended on fast technological advancement: intermittent naval force relies on crewed ships to overcome, but Ukraine has developed a squadron of drone boats, or uncrewed surface area vehicles (USVs). How are they forming the war mixed-up?