.WHEN RUSSIA penetrated in February 2022 Ukraine hardly had a navy. The defenders scuttled their one frigate to prevent Russia coming from seizing it. Two years eventually Ukraine is actually having a hard time to hold off a Russian onslaught ashore-- however it is succeeding the battle in the Black Sea and has actually cracked the Russian blockade of its surface ships. Its triumphes have actually frequently depended on quick technological advancement: every other naval force depends on crewed ships to fight, however Ukraine has actually developed a line of drone boats, or even uncrewed area autos (USVs). How are they shaping the battle mixed-up?