.WHEN RUSSIA infested in February 2022 Ukraine hardly had a navy. The defenders scuttled their one frigate to avoid Russia from seizing it. 2 years later on Ukraine is actually having a hard time to hold off a Russian aggression ashore-- yet it is gaining the war in the Black Ocean and also has actually broken the Russian blockade of its grain ships. Its triumphes have often depended on swift technological development: intermittent navy relies on crewed ships to eliminate, yet Ukraine has constructed a squadron of drone watercrafts, or even uncrewed surface area vehicles (USVs). How are they forming the battle mixed-up?