.WHEN RUSSIA occupied in February 2022 Ukraine barely possessed a navy. The defenders scuttled their one frigate to stop Russia coming from seizing it. Pair of years later Ukraine is having a hard time to keep back a Russian aggression ashore-- yet it is actually winning the war in the Black Sea and has damaged the Russian blockade of its own grain ships. Its own triumphes have usually depended on rapid technological innovation: every other naval force depends on crewed ships to eliminate, yet Ukraine has developed a line of drone boats, or even uncrewed area automobiles (USVs). Just how are they forming the war mixed-up?