.WHEN RUSSIA infested in February 2022 Ukraine hardly possessed a navy. The defenders scuttled their one frigate to stop Russia coming from appropriating it. 2 years later Ukraine is actually having a hard time to keep back a Russian aggression on land-- however it is actually winning the battle in the Black Sea as well as has actually broken the Russian blockade of its own grain ships. Its victories have actually frequently depended on rapid technical development: every other naval force depends on crewed ships to combat, however Ukraine has created a squadron of drone boats, or uncrewed surface area autos (USVs). How are they shaping the battle at sea?