.WHEN RUSSIA got into in February 2022 Ukraine scarcely had a navy. The defenders scuttled their one frigate to prevent Russia from seizing it. 2 years later on Ukraine is straining to hold off a Russian onslaught ashore-- however it is actually succeeding the battle in the Black Sea as well as has broken the Russian blockade of its own surface ships. Its own success have commonly depended upon rapid technical innovation: intermittent naval force relies upon crewed ships to combat, yet Ukraine has actually created a fleet of drone watercrafts, or uncrewed surface autos (USVs). Exactly how are they molding the battle at sea?