.WHEN RUSSIA got into in February 2022 Ukraine rarely had a navy. The protectors scuttled their one frigate to stop Russia from seizing it. 2 years later on Ukraine is having a hard time to hold off a Russian aggression ashore-- yet it is winning the battle in the Black Sea as well as has actually damaged the Russian clog of its own grain ships. Its triumphes have actually usually depended on swift technical technology: every other navy relies on crewed ships to eliminate, but Ukraine has created a fleet of drone boats, or even uncrewed area vehicles (USVs). Exactly how are they shaping the battle at sea?