.WHEN RUSSIA infested in February 2022 Ukraine scarcely had a navy. The guardians scuttled their one frigate to stop Russia coming from appropriating it. Two years eventually Ukraine is straining to hold off a Russian aggression ashore-- however it is winning the war in the Black Ocean as well as has actually cracked the Russian clog of its own surface ships. Its own triumphes have actually often relied on swift technical innovation: intermittent naval force depends on crewed ships to overcome, yet Ukraine has built a fleet of drone boats, or even uncrewed area vehicles (USVs). Just how are they molding the war at sea?