.WHEN RUSSIA attacked in February 2022 Ukraine rarely possessed a navy. The protectors scuttled their one frigate to stop Russia from seizing it. Two years later Ukraine is struggling to keep back a Russian onslaught on land-- however it is actually winning the battle in the Black Sea and has actually broken the Russian clog of its grain ships. Its own victories have actually commonly depended upon fast technological advancement: every other navy relies on crewed ships to overcome, yet Ukraine has actually created a line of drone watercrafts, or even uncrewed area lorries (USVs). Just how are they molding the battle mixed-up?