.WHEN RUSSIA attacked in February 2022 Ukraine barely had a navy. The defenders scuttled their one frigate to prevent Russia from appropriating it. Two years later Ukraine is actually straining to hold off a Russian offensive ashore-- however it is actually gaining the battle in the Black Ocean as well as has damaged the Russian clog of its own grain ships. Its own victories have actually often relied on fast technical technology: intermittent naval force counts on crewed ships to fight, yet Ukraine has actually developed a line of drone watercrafts, or even uncrewed area motor vehicles (USVs). How are they molding the battle at sea?