.WHEN RUSSIA occupied in February 2022 Ukraine barely had a navy. The defenders scuttled their one frigate to prevent Russia from appropriating it. 2 years later on Ukraine is actually straining to hold back a Russian onslaught on land-- but it is actually succeeding the battle in the Black Sea as well as has actually damaged the Russian blockade of its grain ships. Its success have frequently depended on fast technical development: every other navy counts on crewed ships to combat, but Ukraine has created a squadron of drone watercrafts, or even uncrewed surface area lorries (USVs). Exactly how are they molding the battle mixed-up?