.WHEN RUSSIA invaded in February 2022 Ukraine rarely had a navy. The defenders scuttled their one frigate to stop Russia from appropriating it. Pair of years later Ukraine is actually battling to hold off a Russian aggression ashore-- however it is actually winning the war Ocean as well as has actually damaged the Russian clog of its surface ships. Its own triumphes have typically depended upon rapid technological innovation: every other navy counts on crewed ships to overcome, but Ukraine has actually constructed a line of drone boats, or even uncrewed surface area autos (USVs). Exactly how are they molding the war at sea?