.WHEN RUSSIA occupied in February 2022 Ukraine scarcely possessed a navy. The defenders scuttled their one frigate to stop Russia coming from seizing it. Two years eventually Ukraine is actually straining to keep back a Russian onslaught ashore-- but it is succeeding the war in the Black Sea and also has damaged the Russian clog of its own grain ships. Its own success have typically depended on fast technological development: every other naval force counts on crewed ships to eliminate, however Ukraine has actually built a fleet of drone boats, or uncrewed area autos (USVs). Exactly how are they molding the battle mixed-up?