.WHEN RUSSIA occupied in February 2022 Ukraine rarely had a navy. The defenders scuttled their one frigate to stop Russia coming from seizing it. Two years later on Ukraine is actually having a hard time to hold back a Russian offensive on land-- however it is actually succeeding the battle Ocean and also has actually cracked the Russian clog of its own grain ships. Its own victories have commonly depended upon fast technical development: every other navy relies on crewed ships to combat, but Ukraine has actually constructed a fleet of drone boats, or even uncrewed surface automobiles (USVs). How are they forming the battle mixed-up?