.WHEN RUSSIA occupied in February 2022 Ukraine rarely had a naval force. The guardians scuttled their one frigate to prevent Russia from appropriating it. Two years later on Ukraine is actually struggling to hold back a Russian aggression ashore-- yet it is actually winning the battle Sea as well as has actually damaged the Russian clog of its grain ships. Its own success have frequently depended upon swift technological innovation: intermittent navy depends on crewed ships to overcome, but Ukraine has created a line of drone boats, or uncrewed area vehicles (USVs). Just how are they molding the war at sea?