.WHEN RUSSIA invaded in February 2022 Ukraine scarcely had a navy. The guardians scuttled their one frigate to stop Russia from seizing it. Two years eventually Ukraine is actually having a hard time to hold back a Russian offensive ashore-- however it is winning the war in the Black Sea and also has damaged the Russian clog of its surface ships. Its own victories have actually commonly relied on swift technological technology: every other naval force relies on crewed ships to fight, however Ukraine has actually created a line of drone boats, or uncrewed surface lorries (USVs). How are they forming the war mixed-up?