.WHEN RUSSIA invaded in February 2022 Ukraine rarely possessed a navy. The defenders scuttled their one frigate to prevent Russia from seizing it. Two years later Ukraine is actually straining to hold back a Russian aggression ashore-- however it is gaining the battle in the Black Ocean and has actually damaged the Russian clog of its surface ships. Its own victories have actually frequently relied on rapid technological innovation: every other navy counts on crewed ships to eliminate, however Ukraine has developed a squadron of drone watercrafts, or even uncrewed area autos (USVs). Exactly how are they forming the war mixed-up?